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- Daddy-nut [Daddy-nuts] or Daddy-nut tree
- 1893 (74) Madison WI
- Tilia L.
- 1900-1929 (156, 157, 158)
- Tilia americana L.
- Dado 1928 (40)
- Prenanthes alba L.
- Dado'cabodji'bik (Chippewa, milk root)
- 1928 (40)
- Prenanthes alba L.
- 1928 (40)
- Taraxacum officinale G.H. Weber ex Wiggers
- Dagger cocklebur [Dagger cockle-bur] 1895-1923 (5, 62, 70, 156)
- Xanthium spinosum L.
- Dagger fern [Dagger-fern] 1949 (109)
- Polystichum acrostichoides (Michx.) Schott
- Dagger-flower 1913 (5)
- Machaeranthera tanacetifolia (Kunth) Nees
- Dagger-leaf spike-rush [Daggerleaf spikerush] Present (50)
- Eleocharis lanceolata Fern.
- Daggers
- 1900-1923? (5, 156, 158) obsolete by 1923
- Iris pseudacorus L.
- 1900 (158)
- Phalaris arundinacea L.
- Daggerweed [Dagger weed] 1830 (37)
- Yucca glauca Nutt.
- Daheya 1879 (46)
- Juglans cinerea L.
- Dahurian buckthorn
- 1923-Present (50, 138, 155)
- Rhamnus davurica Pallas [also reported as: Rhamnus dahurica, probably this species]
- Present (50)
- Rhamnus davurica Pallas ssp. davurica
- Daisy
- 1814-1949 (1, 2, 10, 109, 155, 156, 158, 167)
- Bellis L.
- 1840-1876 (19, 92)
- Bellis perennis L.
- 1828-1923 (7, 76, 156, 158) Sulphur Grove OH, Burnside ND, misapplied
- Erigeron philadelphicus L.
- 1896-1913 (5, 76, 158) Burnside SD, Western plains
- Erigeron pumilus Nutt.
- Present (50)
- Leucanthemum P. Mill.
- 1828 (7)
- Leucanthemum vulgare Lam. [reported as: Chrysanthemum leucanthemum L.]
- Daisy fleabane [Daisy-fleabane]
- 1917 (57)
- Erigeron L.
- 1897-1937 (5, 62, 63, 80, 82, 97, 121, 122, 145, 156, 158)
- Erigeron annuus (L.) Pers.
- 1900-1923 (5, 156, 158)
- Erigeron philadelphicus L.
- 1828-1878 (7, 86)
- Erigeron pulchellus Michx. [also reported as: Erigeron bellidifolium Muhl.]
- 1918?-1970? (121)
- Erigeron pumilus Nutt.
- 1897-1986 (3, 4, 145)
- Erigeron strigosus Muhl. ex Willd.
- 1899-1937 (5, 72, 80, 93, 97, 131, 156)
- Erigeron strigosus Muhl. ex Willd. var. strigosus [also reported as: Erigeron ramosus (Walt.) B.S.P.]
- Daisy-leaf fleabane [Daisy-leaved flea-bane] 1878 (86)
- Erigeron pulchellus Michx. [reported as: Erigeron bellidifolium Muhl.]
- Daisy-of-America [Daisy of America] 1821 (12)
- Astranthium integrifolium (Michx.) Nutt. [reported as: Bellis integrifolia Michx.]
- Dakota gentian Present (50)
- Gentiana andrewsii Griseb. var. dakotica A. Nels.
- Dakota mock vervain
- Present (50)
- Glandularia bipinnatifida (Nutt.) Nutt.
- Present (50)
- Glandularia bipinnatifida (Nutt.) Nutt. var. bipinnatifida
- Dakota tipsinna 1896 (76) Burnside SD, an Indian name
- Pediomelum esculentum (Pursh) Rydb. [reported as: Psoralea esculenta Pursh]
- Dakota turnip 1896-1900 (76, 158) MN
- Pediomelum esculentum (Pursh) Rydb. [also reported as: Psoralea esculenta Pursh]
- Dakota vervain 1923-1986 (4, 138, 155)
- Glandularia bipinnatifida (Nutt.) Nutt. var. bipinnatifida [also reported as: Verbena bipinnatifida Nutt.]
- Dakota vetch 1899 (131) SD
- Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus [reported as: Lotus americanus (Nutt.) Bisch.]
- Dakota-potato [Dakota potato] 1896 (76) MN
- Apios americana Medik. [reported as: Apios tuberosa Moench]
- Dalea 1930-1942 (106, 155)
- Dalea L. [reported as: Parosela Cavar.]
- Dallis grass [Dallis-grass, Dallisgrass] 1852-Present (3, 50, 109, 119, 138, 155, 163)
- Paspalum dilatatum Poir.
- Dalmatian toadflax
- 1923-Present (50, 138, 155)
- Linaria dalmatica (L.) P. Mill.
- 1942-Present (50, 155)
- Linaria dalmatica (L.) P. Mill. ssp. dalmatica
- Damaske rose 1617 (46)
- Rosa blanda Aiton
- Damask-violet [Damask violet] 1900-1923 (5, 156, 158)
- Hesperis matronalis L.
- Dame's-gilliflower [Dame's gilliflower] 1900-1913 (5, 158)
- Hesperis matronalis L.
- Dame's-rocket [Dame's rocket, Dames rocket]
- 1986 (4)
- Hesperis L.
- 1900-Present (50, 4, 3, 1, 5, 72, 85, 138, 155, 156, 158)
- Hesperis matronalis L.
- Dame's-violet [Dame's violet, Dames-violet]
- 1923 (156)
- Hesperis L.
- 1893-1949 (1, 5, 15, 74, 92, 109, 156, 158)
- Hesperis matronalis L.
- Damewort [Dame-wort] 1923 (156)
- Hesperis matronalis L.
- Dandelion
- 1896 (76) Burnside SD
- Nothocalais cuspidata (Pursh) Greene [reported as: Troximon cuspidatum Pursh]
- 1923-Present (1, 4, 50, 82, 109, 138, 155, 156)
- Taraxacum G.H. Weber ex Wiggers [also reported as: Taraxacum (Haller) Ludw.]
- 1770-1977 (3, 5, 10, 19, 37, 41, 52, 53, 57, 59, 62, 64, 69, 72, 80, 85, 93, 97, 106,107, 114, 131, 138, 145, 157, 158)
- Taraxacum officinale G.H. Weber ex Wiggers [also reported as: Leontodon taraxacum L., Taraxacum taraxacum L.]
- 1671-1892 (6, 46, 47, 48, 49, 58, 61, 92)
- Taraxacum officinale G.H. Weber ex Wiggers ssp. officinale [also reported as: Taraxacum dens-leonis Desf.]
- Dandelion cynthia 1878 (86)
- Krigia dandelion (L.) Nutt. [reported as: Cynthia dandelion (L.) DC..]
- Dandelion hawk's-beard [Dandelion hawksbeard]
- 1942 (155)
- Crepis runcinata (James) Torr. & Gray
- 1942 (155)
- Crepis runcinata (James) Torr. & Gray ssp. runcinata
- Dangleberry [Dangle-berry] 1898-1923 (5, 92, 156, 158)
- Vaccinium stamineum L. [also reported as: Polycodium stamineum (L.) Greene]
- Dant y llew (Welsh) 13th century (107)
- Taraxacum officinale G.H. Weber ex Wiggers
- Danthonia 1942 (155)
- Danthonia DC.
- Dark long-leaf willow [Dark long-leaved willow] 1913 (5)
- Salix petiolaris Sm.
- Darkey-head [Darkey head] 1912-1913 (5, 62) IN
- Rudbeckia hirta L.
- Dark-green bulrush [Darkgreen bulrush, Dark green bulrush]
- 1907-1977 (3, 5, 72)
- Scirpus atrovirens Willd. [also reported as: Scirpus atrovirens Willd. var. atrovirens]
- 1977 (3)
- Scirpus georgianus Harper [reported as: Scirpus atrovirens Willd. var. georgianus (Harper) Fern.]
- 1977 (3)
- Scirpus pallidus (Britt.) Fern. [reported as: Scirpus atrovirens Willd. var. pallidus Britt.]
- Dark-leaf mugwort [Darkleaf mugwort, Dark-leaved mugwort] 1913-1937 (5, 93, 97, 122)
- Artemisia ludoviciana Nutt.
- Dark-purple rock-brake [Dark purple rock brake] 1878 (86)
- Pellaea atropurpurea (L.) Link
- Dark-throat shooting-star [Darkthroat shootingstar]
- Present (50)
- Dodecatheon pulchellum (Raf.) Merr.
- 1942-Present (50, 155)
- Dodecatheon pulchellum (Raf.) Merr. ssp. pulchellum [also reported as: Dodecatheon pauciflorum Greene]
- Darlington's ash 1913 (5)
- Fraxinus pennsylvanica Marsh. [reported as: Fraxinus darlingtonii Britton]
- Darnel or Darnel grass
- 1818-1932 (1, 7, 10, 66)
- Lolium L.
- 1840-1932 (19, 45, 85, 92)
- Lolium perenne L.
- 1852-1942 (5, 14, 56, 67, 72, 88, 92, 94, 119, 155, 157, 158, 163)
- Lolium temulentum L. [also reported as: Lolium arvense With.]
- Darnel rye grass [Darnel ryegrass] 1942-Present (50, 155)
- Lolium temulentum L.
- Darning-needle [Darning needle] 1901 (56) IA
- Hesperostipa spartea (Trin.) Barkworth [reported as: Stipa spartea Trin.]
- Dart grass 1913 (5)
- Holcus lanatus L. [reported as: Nothoholcus lanatus (L.) Nash]
- Dashel
- 1900-1929 (157, 158)
- Cirsium arvense (L.) Scop. [also reported as: Carduus arvensis (L.) Robson]
- 1900-1929 (157, 158)
- Sonchus oleraceus L.
- Dasistoma Present (50)
- Dasistoma Raf.
- Date-plum [Date plum]
- 1818-1932 (1, 2, 8, 10, 158)
- Diospyros L.
- 1898 (5, 49, 92, 156)
- Diospyros virginiana L.
- Datil 1913 (153) NM
- Yucca baccata Torr.
- Datil yucca 1942 (155)
- Yucca baccata Torr.
- Datura
- 1923-1942 (138, 155)
- Datura L.
- 1917 (57)
- Datura stramonium L.
- Daucon (Greek) 27 AD (107)
- Daucus carota L.
- David's spurge Present (50)
- Euphorbia davidii Subils
- Davis Mountain mock vervain Present (50)
- Glandularia wrightii (Gray) Umber
- Davis' sedge [Davis sedge] 1893-Present (3, 5, 50, 66, 72)
- Carex davisii Schwein. & Torr.
- Dawke 1900-1929 (157, 158)
- Daucus carota L.
- Day-berry [Dayberry] 1913-1923 (5, 156)
- Ribes uva-crispa L. var. sativum DC. [also reported as: Grossularia reclinata (L.) P. Mill. Ribes grossularia L.]
- Da'yewû (Cherokee, it sews itself up) 1886 (102) leaves are said to grow together again when torn
- Arnoglossum atriplicifolium (L.) H.E. Robins. [reported as: Cacalia atriplicifolia L.]
- Dayflower [Day flower, Day-flower]
- 1828-Present (1, 7, 50, 93, 109, 122, 124, 138, 155, 156, 158)
- Commelina L. [also reported as: Commelina (Plum.) L.]
- 1926-1977 (3, 98) Neb
- Commelina communis L.
- 1840-1932 (19, 85, 92)
- Commelina erecta L. var. angustifolia (Michx.) Fern. [also reported as: Commelina angustifolia Michx., Commelina crispa Wooton]
- 1931 (65) OK
- Commelina virginica L.
- Day-lily [Day lily, Daylily]
- 1900-Present (50, 107, 109, 138, 156, 158)
- Hemerocallis L.
- 1818-1977 (3, 10, 72, 93)
- Hemerocallis fulva (L.) L.
- Day-nettle [Day nettle] 1900-1913 (5, 158)
- Lamium purpureum L.
- Dazeg 1900 (158)
- Bellis perennis L.
- De solis flore tuberoso, seu farnesiano fabii columnae 1625 (107) Aldinus
- Helianthus tuberosus L.
- Dead-men's-bells [Dead men's bells]
- 1876 (92)
- Digitalis pupurea L.
- 1898 (77) Western US, from growing on graves
- Penstemon digitalis Nutt. ex Sims
- Dead-nettle [Dead nettle, Deadnettle]
- 1814-Present (1, 4, 7, 10, 50, 93, 106, 109, 138, 155, 156, 158, 167)
- Lamium L. [also reported as: Lamium (Tourn.) L.]
- 1840-1937 (19, 62, 63, 85, 92, 122, 124)
- Lamium amplexicaule L.
- 1923 (156)
- Pilea pumila (L.) Gray
- Deadly nightshade Present (50)
- Solanum interius Rydb.
- Dead-men's-bones [Dead men's bones] 1892-1913? (5, 73, 156, 157, 158) Troy NY
- Linaria vulgaris P. Mill. [also reported as: Linaria linaria (L.) Karst., Linaria vulgaris Hill]
- Deaf-nettle [Deaf nettle] 1900-1913 (5, 158)
- Lamium purpureum L.
- Death-camas [Death camas, Deathcamas, Death camass]
- 1932-Present (1, 50, 93, 155)
- Zigadenus Michx. [also reported as: Toxicoscordion Rydb., all US species are now Ziganeus]
- 1929 (157)
- Zigadenus elegans Pursh
- 1977 (3)
- Zigadenus nuttallii (Gray) S. Wats.
- 1905 (101) MT
- Zigadenus venenosus S. Wats.
- 1903-1977 (3, 5, 85, 93, 133, 146, 148, 157, 158)
- Zigadenus venenosus S. Wats. var. gramineus (Rydb.) Walsh ex M.E. Peck[also reported as: Zygadenus gramineus Rydb., Zygadenus intermedius [Rydb.], Zygadenus venenosus S. Wats., Toxicoscordion gramineum Rydb.]
- Death-come-quickly 1900-1929 (156, 157, 158)
- Geranium robertianum L.
- Death-of-man [Death of man] 1828-1923 (6, 7, 71, 92, 156, 158)
- Cicuta maculata L.
- Deciduous holly 1913-1986 (3, 4, 5, 97, 106, 122, 124, 156)
- Ilex crenata Thunb. [also reported as: Ilex decidua Walt.]
- Decumbent butterfly-weed [Decumbent butterfly weed] 1907-1937 (5, 72, 122)
- Asclepias asperula (Dcne.) Woods. ssp. capricornu (Woods.) Woods. [also reported as: Asclepias decumbens L.]
- Decumbent five-finger 1913 (5)
- Potentilla simplex Michx.
- Decumbent milkweed 1913-1937 (5, 97) OK
- Asclepias asperula (Dcne.) Woods. ssp. capricornu (Woods.) Woods. [also reported as: Asclepiodora decumbens (Nutt.) Gray]
- Decumbent pearlwort 1913-1937 (5, 97) OK
- Sagina decumbens (Ell.) Torr. & Gray
- Decumbent pencil-flower [Decumbent pencil flower] 1913 (5)
- Stylosanthes biflora (L.) B.S.P. [reported as: Stylosanthes riparia Kearney]
- Deer brush 1932 (1)
- Ceanothus L.
- Deer sedge 1913-Present (5, 50)
- Carex hallii Olney [also reported as: Carex halleri Gunn.]
- Deer vine [Deer-vine] 1894-1923 (5, 75, 156, 158) ME
- Linnaea borealis L. [also reported as: Linnaea americana Forbes]
- Deerberry [Deer-berry, Deer berry]
- 1932 (1)
- Vaccinium L. [reported as: Polycodium Raf.]
- 1879-Present (1, 2, 3, 4, 5, 19, 46, 50, 65, 92, 97, 107, 109, 138, 156, 158)
- Vaccinium stamineum L.[also reported as: Polycodium stamineum (L.) Greene]
- Deerfood [Deer food, Deer-food] 1828-1923 (5, 7, 92, 156)
- Brasenia schreberi Gmel. [also reported as: Brasenia hydropeltis Schreber.]
- Deer-foot 1923 (156)
- Brasenia schreberi Gmel.
- Deer-grass [Deergrass] 1895 (2)
- Rhexia L.
- Deer-pea vetch [Deer pea vetch] 1986 (4)
- Vicia ludociciana Nutt.
- Deer's-ears [Deer's ears] 1930 (106) translation of Navaho name
- Frasera speciosa Dougl. ex Griseb.
- Deer's-tongue [Deer's tongue] (Missouri tribes)
- 1828 (7) (Missouri tribes)
- Erythronium L.
- 1894-1913 (5, 75) Anderson IN
- Erythronium albidum Nutt.
- Deer-tongue dicanthelium [Deertongue dicanhtelium] 1986 (4)
- Dichanthelium clandestinum (L.) Gould
- Deer-tongue grass [Deertongue grass, Deer-tongue-grass] 1894-Present (50, 5, 75, 119)
- Dichanthelium clandestinum (L.) Gould [also reported as: Panicum clandestinum L.]
- Deer-vetch [Deer vetch, Deervetch]
- 1942 (155)
- Lotus L.
- 1926-1986 (4, 98) Neb
- Lotus unifoliolatus (Hook.) Benth. var. unifoliolatus [also reported as: Lotus purshianus (Benh.) Clem. & Clem.]
- Deerwood [Deer-wood] 1900-1929 (156, 157, 158)
- Ostrya virginiana (P. Mill.) K. Koch
- Deerwort boneset [Deerwort-boneset] 1828-1923 (5, 7, 156)
- Ageratina altissima (L.) King & H.E. Robins. [also reported as: Eupatorium urticaefolium Reicherd., Eupatorium urticifolium Reicherd., Eupatorium urticefolium]
- Deil's-spoons [Deil's spoons]
- 1923 (156)
- Alisma plantago-aquatica L.
- 1913 (5)
- Alisma subcordatum Raf.
- 1900-1923 (5, 156, 158)
- Potamogeton natans L.
- Delicious raspberry Present (50)
- Rubus deliciosus Torr.
- Delta arrowhead 1942-Present (50, 155)
- Sagittaria platyphylla (Engelm.) J.G. Smith
- Delta bulrush [Delta bullrush] Present (50)
- Schoenoplectus deltarum (Schuyler) Soják
- De-min (Chippewa, heart berry) 1932 (105)
- Fragaria L.
- Dennett grass 1885-1915 (5, 87, 111, 129) SD
- Elymus virginicus L. var. virginicus [also reported as: Elymus striatus Willd.]
- Dens leon 1488 (59)
- Taraxacum officinale G.H. Weber ex Wiggers
- Dense bladderpod Present (50)
- Lesquerella condensata A. Nels.
- Dense cotton-flower [Dense cottonflower] 1986 (4)
- Guilleminea densa (Willd.) Moq.
- Dense long-beak sedge [Dense long-beaked sedge] 1907-1913 (5, 72) IA
- Carex sychnocephala Carey
- Dense-flower aster [Dense-flowered aster] 1899-1937 (5, 72, 82, 93, 97, 131)
- Symphyotrichum ericoides (L.) Nesom var. ericoides [also reported as: Aster multiflorus Aiton]
- Dense-flower bent grass [Dense flowered bent grass] 1913 (5)
- Agrostis stolonifera L. [reported as: Agrostis maritima Lam.]
- Dense-flower hedge-nettle [Dense-flowered hedge nettle] 1907-1913 (5, 72) IA
- Stachys tenuifolia Willd. [also reported as: Stachys ambigua (Gray) Britton]
- Dense-flower knotweed [Denseflower knotweed] Present (50)
- Polygonum densiflorum Meisn.
- Dense-flower persicaria [Dense-flowered persicaria] 1913 (5)
- Polygonum densiflorum Meisn. [reported as: Persicaria portoricensis (Betero) Small.]
- Dense-flower prairie clover [Dense-flowered prairie clover]
- 1899 (131) SD
- Dalea compacta Spreng. [reported as: Kuhnistera compacta (Spreng.) Kuntze.]
- 1913-1936 (5, 93) Neb
- Dalea cylindriceps Barneby [also reported as: Petalostemum compactum (Spreng.) Swezey]
- Dense-flower water-willow [Dense-flowered water willow, Dense-flowered waterwillow, Denseflowered water willow] 1907-1937 (5, 72, 97, 122)
- Justicia americana (L.) Vahl [also reported as: Dianthera americana L.]
- Dense-flower wreath-aster [Dense-flowered wreath-aster] 1900 (158)
- Symphyotrichum ericoides (L.) Nesom var. ericoides [reported as: Aster multiflorus Aiton]
- Dense-leaf elodea [Denseleaved elodea] 1942 (155)
- Egeria densa Planch.
- Dense-spike blazing star [Densespike blazing star]
- Present (50)
- Liatris densispicata (Bush) Gaiser
- Present (50)
- Liatris densispicata (Bush) Gaiser var. interrupta Gaiser
- Dense-tuft hair-sedge [Densetuft hairsedge]
- Present (50)
- Bulbostylis capillaris (L.) Kunth ex C.B. Clarke
- Present (50)
- Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. capillaris
- Dent corn 1938-1949 (109, 119)
- Zea mays L. ssp. mays [also reported as: Zea mays L. var. indentata Bailey]
- Dent de lion (French)
- 1900 (158)
- Taraxacum officinale G.H. Weber ex Wiggers [reported as: Leontodon taraxacum L., Taraxacum taraxacum L.]
- 1892 (6)
- Taraxacum officinale G.H. Weber ex Wiggers ssp. officinale [reported as: Taraxacum dens-leonis Desf.]
- Depressed whitlow-wort [Depressed whitlow wort] 1913-1936 (5, 93) Neb
- Paronychia depressa (Torr. & Gray) Nutt. ex A. Nels.
- Deptford pink 1879 (4, 5, 15, 46, 50, 72, 155, 156)
- Dianthus armeria L.
- Deseret-weed 1923 (156)
- Glycyrrhiza lepidota Pursh
- Desert biscuitroot
- Present (50)
- Lomatium foeniculaceum (Nutt.) Coult. & Rose
- Present (50)
- Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. daucifolium (Torr. & Gray) Theobald
- Present (50)
- Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. foeniculaceum
- Desert blazing star [Desert blazingstar] 1942 (155)
- Mentzelia multiflora (Nutt.) Gray
- Desert centaury Present (50)
- Centaurium exaltatum (Griseb.) W. Wight ex Piper
- Desert false indigo Present (50)
- Amorpha fruticosa L.
- Desert goosefoot Present (50)
- Chenopodium pratericola Rydb.
- Desert groundsel 1942 (155)
- Senecio eremophilus Richards
- Desert horse-purslane [Desert horsepurslane] Present (50)
- Trianthema portulacastrum L.
- Desert love grass [Desert lovegrass] 1942 (155)
- Eragrostis pectinacea (Michx.) Nees ex Steud. [reported as: Eragrostis arida Hitchc.]
- Desert madwort
- Present (50)
- Alyssum desertorum Stapf.
- Present (50)
- Alyssum desertorum Stapf var. desertorum
- Desert mentzelia 1942 (155)
- Mentzelia multiflora (Nutt.) Gray
- Desert prince's-plume [Desert princesplume]
- 1942-Present (50, 155)
- Stanleya pinnata (Pursh) Britton
- Present (50)
- Stanleya pinnata (Pursh) Britton var. pinnata
- Desert ragwort Present (50)
- Senecio eremophilus Richards
- Desert salt grass [Desert saltgrass] 1944 (140) CO
- Distichlis spicata (L.) Greene [reported as: Distichlis stricta (Torr.) Rydb.]
- Desert seepweed 1942-Present (3, 4, 50, 155)
- Suaeda suffrutescens S. Wats.
- Desert sumac 1986 (4)
- Rhus microphylla Engelm.
- Desert wire-lettuce [Desert wirelettuce] 1942-Present (50, 155)
- Stephanomeria runcinata Nutt.
- Desert-chicory Present (50)
- Pyrrhopappus DC.
- Desert-parsley [Desertparsley] Present (50)
- Lomatium Raf.
- Desert-rue [Desertrue] 1942-Present (50, 155)
- Thamnosma Torr. & Frem.
- Desert-thorn [Desertthorn] 1942-Present (50, 155)
- Lycium L.
- Desert-willow [Desert willow, Desertwillow] 1904-Present (50, 122, 124, 149)
- Chilopsis linearis (Cav.) Sweet [also reported as: Chilopsis linearis (Cavar.) DC., Chilopsis saligna Don.]
- Des-shean (Monomonie) 1810 (23)
- Elodea Michx.
- Deutscher safran (German) 1900 (158)
- Carthamus tinctorius L.
- Devil's-apple [Devil's apple]
- 1892-1929 (5, 6, 62, 69, 71, 92, 156, 157, 158)
- Datura stramonium L.
- 1900-1929 (5, 64, 156, 158)
- Podophyllum peltatum L.
- Devil's-beggarticks [Devil's beggartick, Devils beggarticks] 1942-Present (50, 155)
- Bidens frondosa L.
- Devil's-bit [Devil's bit]
- 1828 (7)
- Arisaema triphyllum (L.) Schott [reported as: Arum triphyllum L.]
- 1898-1923 (49, 156)
- Liatris aspera Michx. [also reported as: Liatris scariosa Willd.]
- Devil's-bite [Devil's bite, Devilsbite]
- 1828 (7)
- Liatris Gaertn. ex Schreber. [reported as: Liatris Auct.]
- 1894-1923 (75, 156) Concord MA, because the corm or tuber is thought to look as if bitten off
- Liatris aspera Michx. [also reported as: Liatris scariosa Willd.]
- Devil's-bones [Devil's bones] 1892-1923 (6, 64, 92, 156, 158)
- Dioscorea villosa L.
- Devil's-bootjacks [Devil's bootjacks] 1912 (62) IN
- Bidens connata Muhl. ex Willd.
- Devil's-claw [Devil's claw, Devilsclaw, Devil's-claws]
- 1942 (155)
- Proboscidea Schmidel
- 1897-1986 (1, 3, 4, 145, 156, 158)
- Proboscidea louisianica (P. Mill.) Thellung [also reported as: Martynia louisiana Miller, Martynia proboscides Gloxin]
- 1900-1923 (5, 156, 158)
- Ranunculus arvensis L.
- Devil's-daisy 1900 (158)
- Leucanthemum vulgare Lam. [reported as: Chrysanthemum leucanthemum L.]
- Devil's-darning-needle [Devil's darning needle, Devil's darning needles, Devil's darning-needle]
- 1900-1923 (5, 50, 156, 158)
- Clematis virginiana L.
- 1932 (1)
- Hesperostipa (Elias) Barkworth [reported as: Stipa L., all Great Plains species are Heterostipa]
- 1913-1923? (5, 156) obsolete by 1923
- Scandix pecten-veneris L.
- Devil's-dye [Devil's dye] 1876 (92)
- Indigofera L.
- Devil's-ear [Devil's ear] 1900-1923 (156, 157, 158)
- Arisaema triphyllum (L.) Schott [also reported as: Arisaema triphyllum (L.) Torr.]
- Devil's-fingers [Devil's fingers]
- 1900-1913 (5, 158)
- Lotus corniculatus L.
- 1913-1923 (5, 156)
- Populus nigra L.
- Devil's-flax [Devil's flax] 1894-1923 (5, 75, 156, 157, 158)
- Linaria vulgaris P. Mill. [also reported as: Linaria linaria (L.) Karst., Linaria vulgaris Hill]
- Devil's-flower [Devil's flower] 1913 (5)
- Linaria vulgaris P. Mill. [reported as: Linaria linaria (L.) Karst.]
- Devil's grass [Devil's-grass]
- 1904-1912 (62, 64, 69)
- Elymus repens (L.) Gould [also reported as: Agropyron repens (L.) Beauv.]
- 1913 (5)
- Paspalum distichum L.
- Devil's-grip [Devil's grip] 1896-1923 (5, 76, 156, 158) North Berwick ME, name given by section hands along railroad because the plant is so hard to eradicate
- Mollugo verticillata L.
- Devil's-gut [Devil's gut, Devil's-guts, Devil's guts]
- 1912 (62) IN
- Cuscuta epithymum (L.) L. [reported as: Cuscuta epithymum Murray]
- 1913-1923 (5, 156)
- Cuscuta gronovii Willd. ex J.A. Schultes
- 1891 (79) NH
- Equisetum arvense L.
- 1900 (158)
- Ranunculus repens L.
- 1896-1900 (76, 158) Paris ME
- Spergula arvensis L.
- Devil's-hair [Devil's-hair] 1893-1923 (5, 74, 156, 158) VA
- Clematis virginiana L.
- Devil's-head [Devil's head] 1986 (4)
- Echinocactus texensis Hopffer.
- Devil's-head echinocactus [Devilshead echinocactus] 1942 (155)
- Echinocactus texensis Hopffer.
- Devil's-head-in-a-bush [Devil's head-in-a-bush] 1892-1923? (5, 73, 156, 158) NH, New Brunswick obsolete by 1923
- Hibiscus trionum L.
- Devil's-horns [Devil's horns] 1923 (156)
- Proboscidea louisianica (P. Mill.) Thellung [reported as: Martynia louisiana Miller]
- Devil's-ironweed [Devil's ironweed, Devil's iron weed] 1894-1929 (5, 75, 156, 157, 158) WV
- Lactuca canadensis L. [also reported as: Lactuca integrifolia Bigel, Lactuca sagittifolia Ell.]
- Devil's-milk [Devil's milk]
- 1900-1923 (156, 158) misapplied
- Chelidonium majus L.
- 1876-1923? (5, 92, 156) obsolete by 1923
- Euphorbia helioscopia L. [also reported as: Tithymalus helioscopia (L.) Hill.]
- Devil's-pitchfork, [Devil's pitchfork] 1900-1923 (5, 75, 156, 158) Ferrisburgh VT; Concord MA
- Bidens frondosa L.
- Devil's-plague [Devil's plague] 1900-1923? (62, 75, 106, 156, 157, 158) obsolete by 1923
- Daucus carota L.
- Devil's-rattlebox [Devil's rattle box, Devil's rattle-box] 1896-1923? (5, 76, 156) Stockbridge MA , obsolete by 1923
- Silene vulgaris (Moench) Garcke [also reported as: Silene cucubalus Wibel, Silene latifolia (P. Mill.) Britton & Rendle]
- Devil's-scourge [Devil's scourge] 1892 (6)
- Hypericum perforatum L.
- Devil's-shoestrings [Devil's shoe-strings, Devil's shoestrings, Devil's shoe strings]
- 1923-1930 (106, 156)
- Cynanchum laeve (Michx.) Pers. [also reported as: Gonolobus laevis Michx.]
- 1913 (80) IA
- Polygonum amphibium L. var. emersum Michx. [reported as: Polygonum muhlenbergii Watson.]
- 1828 (7)
- Tephrosia Pers.
- 1876-1929 (5, 49, 92, 102, 156, 157, 158)
- Tephrosia virginiana (L.) Pers. [also reported as: Cracca virginiana L.]
- Devil's-spoons 1929 (157)
- Alisma subcordatum Raf.
- Devil's-tether [Devil's tether] 1900-1923 (5, 156, 158)
- Polygonum convolvulus L. [also reported as: Tiniaria convolvulus (L.) Webb & Moq.]
- Devil's-thread [Devil's thread] 1923 (156)
- Clematis virginiana L.
- Devil's-tongue [Devil's tongue]
- 1913-Present (5, 50)
- Opuntia humifusa (Raf.) Raf.
- 1892-Present (5, 50, 73, 158)
- Opuntia humifusa (Raf.) Raf. var. humifusa [also reported as: Opuntia opuntia (L.) Coult., Opuntia opuntia (L.) Karst., Opuntia rafinesquii Engelm., Opuntia rafinesquei Engelm.]
- Devil's-trumpet [Devil's trumpet] 1900-1923 (5, 69, 156, 158)
- Datura stramonium L.
- Devil's-vine [Devil's vine] 1912-1923? (5, 62, 156) obsolete by 1923
- Calystegia sepium (L.) R. Br. ssp. angulata Brummitt [also reported as: Convolvulus sepium L.]
- Devil's-walking-stick [Devil's walking stick, Devil's walking-stick, Devil's-walkingstick] 1896-1923 (5, 76, 156, 158) Sulphur Grove OH, misapplied
- Ailanthus altissima (Mill) Swingle[also reported as: Ailanthus glandulosa Desf.]
- Devil's-weed [Devil's weed] 1900-1923 (5, 75, 156, 158) WV
- Lactuca canadensis L.
- Devilweed aster 1942 (155)
- Chloracantha spinosa (Benth.) Nesom [reported as: Aster spinosus Benth.]
- Dew grass
- 1903 (66)
- Agrostis gigantea Roth [reported as: Agrostis alba L.]
- 1876-1913 (5, 92)
- Dactylis glomerata L.
- Dew plant [Dew-plant] 1898-1923 (92, 156, 158) misapplied
- Drosera rotundifolia L.
- Dewberry [Dew berry]
- 1923-1986 (4, 138, 155)
- Rubus L.
- 1907-1977 (3, 5, 62, 72, 97, 107, 156)
- Rubus flagellaris Willd. [also reported as: Rubus nigrobaccus Bailey, Rubus villosus Aiton]
- 1892 (5, 73) NB
- Rubus pubescens Raf. var. pubescens [also reported as: Rubus triflorus Richards]
- 1840-1937 (19, 48, 124) KS TX
- Rubus trivialis Michx.
- Dewey's sedge [Dewey sedge] 1893-Present (5, 50, 66, 72, 139)
- Carex deweyana Schwein.
- Dewflower [Dew flower, Dewflowers, Dew-flowers]
- 1932 (1)
- Commelina L. [reported as: Commelina (Plum.) L.]
- 1923 (156)
- Penstemon cobaea Nutt.
- Dew-grass [Dew grass] 1671 (46) Josselyn
- Drosera rotundifolia L.
- Dewitt's snakeroot [Dewitt snakeroot] 1828 (7)
- Prenanthes L.
- Dewtry 1900-1923? (5, 69, 156, 158) obsolete by 1923
- Datura stramonium L.
- Dhood wort 1840 (19)
- Scutellaria lateriflora L.
- Diabetes-weed [Diabetes weed] 1923 (156)
- Verbesina helianthoides Michx.
- Diamond willow
- 1873-1986 (3, 4, 5, 9, 22, 78, 85, 113, 130, 155)
- Salix eriocephala Michx. [also reported as: Salix cordata Muhl., Salix cordata Muhl. var. vestita Anderss., Salix missouriensis Bebb, Salix rigida Muhl. var. rigida]
- 1977 (3)
- Salix lutea Nutt. [reported as: Salix rigida Muhl. var. watsonii (Bebb) Cronq.]
- Diamond-flowers [Diamondflowers]
- Present (50)
- Hedyotis nigricans (Lam.) Fosberg
- Present (50)
- Hedyotis nigricans (Lam.) Fosberg var. nigricans
- Diamond-leaf willow [Diamondleaf willow] Present (50)
- Salix planifolia Pursh
- Diandrus sedge 1903 (66)
- Cyperus diandrus Torr.
- Dianthera 1942 (155)
- Justicia L. [reported as: Dianthera L.]
- Dianthus 1876 (92)
- Dianthus armeria L.
- Diapedium
- 1900 (158)
- Dicliptera Juss. [reported as: Diapedium Konig]
- 1913-1937 (5, 97) OK
- Dicliptera brachiata (Pursh) Spreng. [also reported as: Diapedium brachiatum (Pursh) Kuntze]
- Dichotoma silene Present (50)
- Silene dichotoma Ehrh.
- Dicky daisy 1900 (158)
- Bellis perennis L.
- Dicliptera 1977 (3)
- Dicliptera brachiata (Pursh) Spreng.
- Dididplis Present (50)
- Didiplis Raf.
- Die Winde (German) 1892 (6)
- Convolvulus arvensis L.
- Diéges (Albanian) 1886 (110)
- Lepidium sativum L.
- Diente de leon (Spansih) 1900 (158)
- Taraxacum officinale G.H. Weber ex Wiggers [reported as: Leontodon taraxacum L., Taraxacum taraxacum L.]
- Diffuse cinquefoil 1899-1936 (5, 72, 93, 131)
- Potentilla rivalis Nutt. var. millegrana (Engelm. ex Lehm.) S. Wats. [also reported as: Potentilla leucocarpa Rydb., Potentilla millegrana Engelm.]
- Diffuse crabgrass [Diffuse crab-grass] 1852-1938 (5, 119, 163)
- Digitaria cognata (J.A. Schultes) Pilger var. cognata [also reported as: Leptoloma cognatum (Schult.) Chase]
- Diffuse eryngo 1937-1986 (4, 97) OK
- Eryngium diffusum Torr.
- Diffuse knapweed 1986 (4)
- Centaurea diffusa Lam.
- Diffuse panicum 1907 (72) IA
- Digitaria cognata (J.A. Schultes) Pilger [reported as: Panicum cognatum Schultes]
- Diffuse purple panicum 1901 (56) IA
- Digitaria cognata (J.A. Schultes) Pilger [reported as: Panicum cognatum Schultes]
- Diffuse rush 1913 (5)
- Juncus diffusissimus Buckl.
- Digitalis 1902-1911 (54, 55, 59, 60)
- Digitalis pupurea L.
- Digitate psoralea 1899-1937 (5, 93, 97, 131)
- Pediomelum digitatum (Nutt. ex Torr. & Gray) Isely [also reported as: Psoralea digitata Nutt.]
- Dike-but 1900 (158)
- Xanthium strumarium L.
- Dill
- 1900-Present (50, 82, 158)
- Anethum L. [also reported as: Anethum(Tourn.) L.]
- 1671-Present (1, 3, 4, 5, 19, 46, 50, 57, 58, 82, 85, 103, 107. 109, 138, 155, 156, 158, 165) Josselyn
- Anethum graveolens L. [also reported as: Peucedanum graveolens Benth. & Hook., Anthemum graveolens L.]
- 1900-1936 (5, 93, 156, 158) misapplied
- Foeniculum vulgare P. Mill. [also reported as: Foeniculum foeniculum (L.) Karst.]
- Dill (German) 1900 (158)
- Anethum graveolens L.
- Dillenius' ticktrefoil Present (50)
- Desmodium glabellum (Michx.) DC.
- Dillen's tickclover [Dillen tickclover] 1942 (155)
- Desmodium perplexum Schub. [reported as: Desmodium dillenii Darl.]
- Dillen's tick-trefoil [Dillen's tick trefoil] 1907-1937 (5, 72, 93, 97)
- Desmodium perplexum Schub. [also reported as: Meibomia dillenii (Darl.) Kuntze]
- Dillweed [Dilweed] 1828-1929 (5, 7, 156, 157, 158)
- Anthemis cotula L.
- Dilly
- 1828 (7)
- Anthemis cotula L.
- 1900 (158)
- Anethum graveolens L.
- Dillydilweed [Dillidillweed] 1876-1900 (92, 157, 158)
- Anthemis cotula L.
- Diluvim ladies'-tresses Present (50)
- Spiranthes diluvialis Sheviak
- Dindle
- 1900-1923? (5, 156, 157, 158) obsolete by 1923
- Sonchus arvensis L.
- 1900-1929 (157, 158)
- Taraxacum officinale G.H. Weber ex Wiggers [also reported as: Leontodon taraxacum L., Taraxacum taraxacum L.]
- Dinkel barley 1900 (158) variety
- Hordeum vulgare L.
- Dioecious sedge Present (50)
- Carex sterilis Willd.
- Dioscorea 1905-1919 (52, 54, 57, 64)
- Dioscorea villosa L.
- Dioscorea quaternata et quinata 1747 (168) Gmelin
- Dioscorea villosa L. [reported as: Dioscorea paniculata Michx.]
- Diospyros
- Present (50)
- Diospyros L.
- 1828-1917 (7, 57)
- Diospyros virginiana L.
- Dipelta 1923 (138)
- Astragalus L. [reported as: Dipelta (Maxim.)]
- Dipper gourd 1919 (37)
- Lagenaria siceraria (Molina) Standl. [reported as: Cucurbita lagenaria L.]
- Dirty-Dick [Dirty Dick] 1900-1929 (156, 157, 158)
- Chenopodium album L.
- Disc mayweed Present (50)
- Matricaria discoidea DC. [also reported as: Matricaria matricarioides (Less.) Porter]
- Dish-mustard [Dish mustard] 1900-1923 (5, 156, 158)
- Thlaspi arvense L.
- Disk water-hyssop [Disk waterhyssop] 1942-Present (50, 155)
- Bacopa rotundifolia (Michx.) Wettst.
- Distaff thistle Present (50)
- Carthamus L.
- Distai'yi (Cherokee, the roots are tough) 1886 (102)
- Tephrosia virginiana (L.) Pers.
- Ditaxis 1900-1942 (155, 158)
- Argythamnia P. Br. [also reported as: Ditaxis Vahl.]
- Ditch buttercup 1933 (126, 127) ND
- Ranunculus sceleratus L.
- Ditch crowfoot 1900-1923 (5, 156, 158)
- Ranunculus sceleratus L.
- Ditch fern 1913-1929 (5, 157)
- Osmunda regalis L.
- Ditch rabbits-foot grass [Ditch rabbitsfoot grass] Present (50)
- Polypogon interruptus Kunth
- Ditch stonecrop [Ditch stone crop]
- 1895 (1, 2, 4, 156, 158)
- Penthorum L.
- 1898-Present (4, 5, 49, 50, 53, 63, 72, 97, 120, 155, 156, 157, 158)
- Penthorum sedoides L.
- Ditch sunflower 1923-1942 (138, 155, 156)
- Bidens coronata (L.) Britton [also reported as: Bidens trichosperma [(Michx.) Britt.]
- Ditchbur [Ditch-bur] 1900 (158)
- Xanthium strumarium L.
- Ditch-grass [Ditch grass, Ditchgrass]
- 1900-1932 (1, 158) for H.B. Rupp, German botanist, 18th century
- Ruppia L.
- 1929 (157)
- Ruppia cirrhosa (Petag.) Grande [reported as: Ruppia occidentalis S. Wats.]
- 1900-1977 (3, 92, 97, 156, 158)
- Ruppia maritima L.
- Ditch-moss [Ditchmoss, Ditch moss] 1840-1949 (19, 72, 109, 131, 156, 158)
- Elodea canadensis Michx. [also reported as: Anacharis canadensis(Michx.) Planch., Elodea canadensis Michx., Serpicula canadensis Michx.]
- Dittander 1671-1919 (46, 92, 107) Josselyn
- Lepidium latifolium L.
- Dittany
- 1895 (2, 4)
- Cunila L.
- 1840-1986 (4, 19, 57, 58, 156)
- Cunila origanoides (L.) Britton [also reported as: Cunila mariana L.]
- Diverse-glume wild rye [Diverseglume wildrye] Present (50)
- Elymus diversiglumis Scribn. & Ball
- Dixie iris 1923-Present (50, 138)
- Elymus diversiglumis Scribn. & Ball [also reported as: Iris hexagona Walt.]
- Do (Osage) 1918?-1970? (121)
- Apios americana Medik.
- Dock
- 1814-Present (1, 2, 4, 7, 10, 50, 93, 101, 103, 109, 138, 155, 156, 158, 167)
- Rumex L.
- 1893 (21)
- Rumex altissimus Wood
- 1840-1901 (19, 56) IA
- Rumex crispus L.
- Dock cress 1913 (5)
- Lapsana communis L.
- Dock-leaf persicaria [Dock-leaved persicaria] 1899-1936 (5, 93, 131, 156) Neb SD
- Polygonum lapathifolium L. [also reported as: Persicaria lapathifolia (L.) S. F. Gray]
- Dodder
- 1882-Present (1, 2, 4, 14, 50, 82, 93, 106, 159) old Friesian word for tangle of silk
- Cuscuta L. [also reported as: Cuscuta (Tourn.) L.]
- 1610-1879 (37, 46)
- Cuscuta glomerata Choisy [also reported as: Cuscuta paradoxa Raf.]
- 1932 (85) SD
- Cuscuta indecora Choisy
- 1897 (145) KS
- Cuscuta pentagona Engelm. var. pentagona [reported as: Cuscuta arvensis Beyrich.]
- Dodder-cake [Dodder cake] 1876 (92) refuse oil cake
- Camelina sativa (L.) Crantz
- Dodger 1900-1929 (157, 158)
- Cirsium arvense (L.) Scop. [also reported as: Carduus arvensis (L.) Robson]
- Dog bramble 1913-1923 (5, 107, 156)
- Ribes cynosbati L. [also reported as: Grossularia cynosbati (L.)P. Mill.]
- Dog camomile [Dog-chamomile, Dog chamomile, Dog's-camomile Dog's camomile Dog's chamomile]
- 1932 (1)
- Anthemis L. [reported as: Maruta Cass.]
- 1898-1936 (5, 49, 93, 156, 157, 158)
- Anthemis cotula L.
- Dog camovyne [Dog's-camovyne, Dog's camovyne]
- 1900-1929 (157, 158)
- Anthemis cotula L.
- 1900 (158)
- Matricaria recutita L. [reported as: Matricaria chamomila L.]
- Dog couch grass 1852-1936 (143) Quebec
- Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus [reported as: Agropyron pauciflorum (Schwein.) A.S. Hitchc.]
- Dog daisy [Dog-daisy]
- 1900 (158) North England
- Bellis perennis L.
- 1900-1923 (5, 156, 158)
- Leucanthemum vulgare Lam.[also reported as: Chrysanthemum leucanthemum L.]
- Dog fennel 1986 (4)
- Anthemis L.
- Dog grass
- 1876 (92)
- Anthemis L. [reported as: Triticum caninum (Agropyron caninum (L.) Beauv.)]
- 1876 (92)
- Elymus caninus (L.) L. [reported as: Triticum caninum , Agropyron caninum (L.) Beauv.]
- 1884-1922 (5, 45, 49, 53, 62, 64, 66, 69, 78, 87, 90, 92) dog's eat it for medicinal qualities in exciting vomit
- Elymus repens (L.) Gould[also reported as: Agropyron repens (L.) Beauv., Agropyrum repens, Triticum repens L.]
- Dog rose 1923 (156)
- Rosa carolina L.
- Dog thistle [Dog-thistle] 1900-1929 (157, 158)
- Cirsium arvense (L.) Scop. [also reported as: Carduus arvensis (L.) Robson]
- Dog tree 1828-1892 (6, 7, 92)
- Cornus florida L.
- Dogbane [Dog-bane, Dog bane, Dog's bane, Dogs' bane, Dogsbane]
- 1895-Present (2, 4, 40, 50, 82, 93, 138, 155, 156, 158)
- Apocynum L.[also reported as: Apocynum (Tourn.) L.]
- 1840-1932 (6, 19, 40, 49, 58, 63, 85, 92, 157, 158)
- Apocynum androsaemifolium L.
- 1770-1933 (6, 41, 105, 124, 125, 127, 148, 157)
- Apocynum cannabinum L.[also reported as: Apocynum hypericifolium Aiton]
- 1818 (10)
- Cynanchum L.
- Dog-banner 1900-1929 (157, 158)
- Anthemis cotula L.
- Dogberry [Dog-berry] 1900-1986 (3, 4, 5, 156, 158)
- Ribes cynosbati L. [also reported as: Grossularia cynosbati (L.)P. Mill.]
- Dogberry tree
- 1785 (8)
- Cornus L.
- 1900-1923 (5, 156, 158)
- Cornus sericea L. ssp. sericea [also reported as: Cornus stolonifera Michx.]
- Dog-binder 1900-1929 (157, 158)
- Anthemis cotula L.
- Dog-blow [Dog blow] 1900-1913 (5, 158) Nova Scotia
- Leucanthemum vulgare Lam. [also reported as: Chrysanthemum leucanthemum L.]
- Dog-bur [Dog bur]
- 1894 (75) WV
- Cynoglossum L.
- 1900-1923 (62, 75, 156, 157, 158)
- Cynoglossum officinale L.
- 1913-1923 (5, 156)
- Cynoglossum virginianum L.
- Dog-daisy [Dog daisy]
- 1900-1929 (157, 158)
- Achillea millefolium L.
- 1900-1929 (5, 156, 157, 158)
- Anthemis cotula L.
- Dog-elder 1923? (156) obsolete by 1923
- Viburnum opulus L.
- Dog-fennel [Dog fennel, Dogfennel, Dog's fennel]
- 1932-1936 (1, 93) Neb
- Anthemis L. [also reported as: Anthemis (Michx.) L., Maruta Cass.]
- 1828-1986 (3, 4, 5, 7, 49, 58, 62, 63, 72, 73, 80, 85, 92, 122, 145, 156, 157, 158)
- Anthemis cotula L. [also reported as: Maruta cotula (L.) DC..]
- 1923 (156)
- Helenium autumnale L.
- 1900-1923 (5, 156, 158) misapplied
- Symphyotrichum ericoides (L.) Nesom var. ericoides [also reported as: Aster ericoides L.]
- Dog-finkle [Dog finkle] 1900-1929 (5, 157, 158)
- Anthemis cotula L.
- Doggers 1913 (5)
- Phalaris arundinacea L.
- Dog-grass [Dog grass] 1913-1923 (5, 156)
- Carex straminea Willd. ex Schkuhr
- Dog-lily [Dog lily] 1900 (158)
- Nuphar lutea (L.) Sm. ssp. advena (Aiton) Kartesz & Gandhi [reported as: Nymphaea advena Soland.]
- Dogmint [Dog mint] 1828 (7)
- Clinopodium L.
- Dog-mustard [Dog mustard] 1977-1986 (3, 4)
- Erucastrum gallicum (Willd.) O. E. Schulz
- Dog-nettle [Dog nettle]
- 1900-1923 (5, 156, 158)
- Galeopsis bifida Boenn. [also reported as: Galeopsis tetrahit L.]
- 1900-1923 (156, 158)
- Lamium purpureum L.
- Dog-parsley [Dog parsley, Dogparsley]
- 1942 (155)
- Lomatium Raf.[reported as: Cynomaranthrum (Nutt.) Coult. & Rose]
- 1936 (4, 93) Neb
- Lomatium nuttallii (Gray) J.F. Macbr. [also reported as: Cynomarathrum nuttallii (Gray) Coult. & Rose]
- Dog-rowan tree [Dog rowan tree] 1900-1923? (5, 156, 158) obsolete by 1923
- Viburnum opulus L.
- Dog's grass 1828 (7)
- Cynodon dactylon (L.) Pers.
- Dog's tansy 1900-1929 (156, 157, 158) Scotland
- Argentina anserina (L.) Rydb. [also reported as: Potentilla anserina L.]
- Dogs-and-cats [Dogs and cats] 1900-1923? (5, 156, 158) obsolete by 1923
- Trifolium arvense L.
- Dog's-dinner [Dog's dinner] 1896-1923 (5, 76, 156, 158) Wellfleet MA
- Hudsonia tomentosa Nutt.
- Dog's-finger [Dog's finger, Dogs' finger] 1876-1913 (5, 69, 92)
- Digitalis pupurea L.
- Dog's-mouth
[Dog's mouth, Dogs' mouth] 1876-1923 (5, 92, 156, 158)
- Antirrhinum majus L.
- Dog's-ribs [Dog's rib, Dog-ribs] 1900-1923? (5, 156, 158) obsolete by 1923
- Plantago lanceolata L.
- Dog's-tail [Dog's tail] or Dog-tail grass [Dog tail grass, Dog's tail grass, Dogs' tail grass, Dog's-tail grass] 1840-1913 (5, 19, 75, 92, 145) KS WV
- Eleusine indica (L.) Gaertn.
- Dogstones 1671 (46) Josselyn
- Platanthera lacera (Michx.) G. Don
- Dog's-tongue [Dog-tongue] 1900-1923 (156, 157, 158)
- Cynoglossum officinale L.
- Dog-tails 1898 (77) St. Joseph MO
- Polygonum aviculare L.
- Dogthe (Osage) 1918?-1970? (121)
- Pediomelum esculentum (Pursh) Rydb. [reported as: Psoralea esculenta Pursh]
- Dog's-tooth [Dog's tooth] 1890 (67)
- Cynodon dactylon (L.) Pers.
- Dog-tooth grass [Dog's tooth grass, Dog's-tooth grass, Dogtoothgrass]
- 1942 (155)
- Cynodon L.C. Rich.
- 1900-1913 (5, 158)
- Cynodon dactylon (L.) Pers. [also reported as: Capriola dactylon (L.) Kuntze]
- 1913 (5)
- Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus
- Dog-tooth violet [Dog tooth violet, Dog's tooth violet, Dogtooth violet, Dog-toothed violet]
- 1814-1936 (1, 10, 93) Neb
- Erythronium L.
- 1923-1937 (85, 122, 124, 156)
- Erythronium albidum Nutt.
- Dog-town grass [Dog town grass, Dogtown-grass]
- 1901 (94)
- Aristida adscensionis L. [reported as: Aristida fasciculata Torr.]
- 1852-1915 (111, 163) Neb
- Aristida purpurea Nutt. var. longiseta (Steud.) Vasey [also reported as: Aristida longiseta Steud.]
- Dogweed [Dog weed]
- 1942 (155)
- Dyssodia Cav.
- 1876 (92)
- Elymus repens (L.) Gould [reported as: Triticum repens L.]
- 1897 (145) KS
- Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray
- Dogwood [Dog wood , Dog-wood] or Dogwood tree
- 1818-Present (1, 2, 10, 50, 82, 93, 106, 109, 138, 155, 158)
- Cornus L. [also reported as: Svida Opiz.]
- 1932 (85) SD
- Cornus amomum P. Mill. [reported as: Svida amomum (P. Mill.) Small]
- 1770-1922 (7, 12, 19, 20, 38, 41, 48, 49, 52, 53, 54, 57, 58, 60, 92, 158)
- Cornus florida L.
- 1899 (63, 82) IA
- Cornus racemosa Lam. [also reported as: Cornus paniculata L'Her.]
- 1932-1937 (105, 112) Neb
- Cornus sericea L. ssp. sericea [also reported as: Cornus stolonifera Michx.]
- 1923 (156)
- Euonymus atropurpurea Jacq. [reported as: Euonymous atropupureus Jacq.]
- 1913-1923 (5, 156) misapplied
- Prunus pensylvanica L. f.
- 1913-1923 (5, 156)
- Rhamnus alnifolia L'Her.
- 1913-1923 (5, 156)
- Solanum dulcamara L.
- Dokhn
- 1879 (46)
- Pennisetum glaucum (L.) R. Br. [reported as: Pennisetum typhoideum Rich.]
- (Modern Egypt) 1886 (110)
- Panicum miliaceum L.
- Dokhna or dokhn (Arabia) 1886 (110)
- Sorghum bicolor (L.) Moench [reported as: Holcus saccharatus L.]
- Dolichos 287 BC (110) Theophrastus
- Possibly,Phaseolus vulgaris L. [reported as: Phaseolus vulgaris Savi]
- Dollar-leaf [Dollar leaf, Dollarleaf]
- 1913-1986 (4, 5, 156)
- Desmodium rotundifolium DC. [also reported as: Desmodium michauxii (Vail) Daniels, Meibomia michauxii Vail]
- 1876-1923 (5, 92, 156, 158)
- Pyrola americana Sweet [also reported as: Pyrola rotundifolia L.]
- Doll-cheese [Doll cheeses] 1900-1929 (5, 106, 156, 157, 158) from shape of seed pods
- Malva rotundifolia L.
- Doll's-daisy [Doll's daisy] Present (50)
- Boltonia L'Hér.
- Doll's-eyes 1923 (156)
- Actaea pachypoda Ell. [reported as: Actaea alba (Aiton) Willd.]
- Dolma (Turkey) 1919 (107)
- Lagenaria siceraria (Molina) Standl. [reported as: Lagenaria vulgaris Ser.]
- Donald's honeysuckle [Donald honeysuckle] 1942 (155)
- Lonicera dioica L. [reported as: Lonicera glaucescens Rydb.]
- Doonhead 1907 (64)
- Taraxacum officinale G.H. Weber ex Wiggers
- Doon-head-clock 1900-1929 (69, 157, 158)
- Taraxacum officinale G.H. Weber ex Wiggers
- Door-grass [Door grass] 1892-1923 (5, 73, 156, 158) Southern IN
- Polygonum aviculare L.
- Doorweed [Door-weed]
- 1930-1936 (1, 93, 106) Neb
- Polygonum L. [also reported as: Polygonum (Tourn.) L.]
- 1852-1923 (2, 47, 62, 72, 145, 156, 158)
- Polygonum aviculare L.
- 1876 (92)
- Polygonum hydropiper L.
- 1876 (92)
- Polygonum persicaria L.
- 1936 (93) Neb
- Polygonum tenue Michx.
- Dooryard dock Present (50)
- Rumex longifolius DC.
- Dooryard-grass [Door-yard grass]
- 1894-1923 (129, 156) SD
- Polygonum aviculare L.
- 1894 (129) SD
- Polygonum erectum L.
- Dooryard knotweed 1913 (80) IA
- Polygonum aviculare L.
- Dooryard plantain [Door-yard plantain] 1900-1936 (5, 93, 122, 156, 157, 158)
- Plantago major L.
- Doranapfel (German) 1900 (158)
- Datura stramonium L.
- Doronicum americanum 1622 (46) C. Bauhin
- Rudbeckia laciniata L.
- Dotted hawthorn 1923-Present (50, 137, 138, 155)
- Crataegus punctata Jacq.
- Dotted beebalm 1986 (4)
- Monarda punctata L. ssp. punctata var. occidentalis (Epling) Palmer & Steyermark
- Dotted blazing star
- 1918?-Present (50, 121)
- Liatris punctata Hook.
- Present (50)
- Liatris punctata Hook. var. punctata
- Dotted button snakeroot [Dotted button snakeroot]
- 1930-1937 (82, 122) IA TX
- Liatris punctata Hook.
- 1899-1937 (5, 72, 97, 131)
- Liatris punctata Hook. var. punctata [also reported as: Lacinaria punctata (Hook.) Kuntze]
- Dotted gayfeather 1923-1942 (138, 155)
- Liatris punctata Hook.
- Dotted haw 1913 (5)
- Crataegus punctata Jacq.
- Dotted millet
- 1936 (93) Neb
- Eriochloa Kunth
- 1938 (119) Neb
- Eriochloa contracta Hitchc.
- 1913-1923 (5, 99) OK
- Eriochloa punctata (L.) Desv. ex Hamilton
- Dotted smartweed [Dotted smart-weed]
- 1900-Present (5, 50, 93, 97, 155, 157, 158) Neb OK
- Polygonum punctatum Ell. [also reported as: Persicaria punctata (Ell.) Small.]
- Present (50)
- Polygonum punctatum Ell. var. confertiflorum (Meisn.) Fassett
- 1923-Present (50, 156)
- Polygonum punctatum Ell. var. punctatum[also reported as: Polygonum acre Kunth]
- Dotted wolffia 1913 (5)
- Wolffia brasiliensis Weddell [reported as: Wolffia punctata Griseb.]
- Dotted-fruit thorn [Dotted-fruited thorn] 1923 (156)
- Crataegus punctata Jacq.
- Double bladderpod [Double bladder pod, Double bladder-pod]
- 1932-1986 (1, 4, 93)
- Physaria (Nutt. ex Torr. & Gray) Gray
- 1913-1986 (3, 4, 5, 131) SD
- Physaria brassicoides Rydb. [also reported as: Physaria didymocarpa (Hook.) Gray]
- Double claw [Double-claw] 1828-1923? (5, 7, 92, 156, 158)
- Proboscidea louisianica (P. Mill.) Thellung [also reported as: Martynia louisiana Miller, Martynia proboscides Gloxin]
- Double featherfew 1894 (75) Western MA
- Tanacetum parthenium (L.) Schultz-Bip. [reported as: Chrysanthemum parthenium (L.) Pers.]
- Double feverfew 1894 (75) Western MA
- Tanacetum parthenium (L.) Schultz-Bip. [reported as: Chrysanthemum parthenium (L.) Pers.]
- Double flowering crab 1937 (112) Neb
- Malus ioensis (Wood) Britton var. ioensis [reported as: Malus ioensis (Wood) Britton var. plena]
- Double goldenrod [Double golden-rod]
- 1900 (158)
- Solidago canadensis L.
- 1913-1923 (5, 156)
- Solidago canadensis L. var. scabra Torr. & Gray [also reported as: Solidago altissima L.]
- Double tansy 1876-1900 (92, 158)
- Tanacetum vulgare L. [also reported as: Tanacetum crispum, Tanacetum vulgare L. var. crispum DC.]
- Double twinpod Present (50)
- Physaria brassicoides Rydb.
- Double-flower creeping buttercup [Double-flowered creeping buttercup] 1949 (109)
- Ranunculus repens L. [reported as: Ranunculus repens L. var. pleniflorus Fern.]
- Double-head panic [Double-headed panic] 1903 (66)
- Panicum anceps Michx.
- Double-tooth 1900-1923 (5, 156, 158)
- Bidens cernua L.
- Doubtful knight's-spur [Doubtful knight's spur] Present (50)
- Consolida ajacis (L.) Schur
- Doubtful larkspur 1942 (155)
- Consolida ajacis (L.) Schur [reported as: Delphinium ambiguum L.]
- Douce-Amere (French) 1892 (6)
- Solanum dulcamara L.
- Douglas' California poppy [Douglas California-poppy] 1923 (138)
- Eschscholzia californica Cham. ssp. californica [reported as: Eschscholzia californica douglasi]
- Douglas hackberry 1942 (155)
- Celtis laevigata Willd. var. reticulata (Torr.) L. Benson [reported as: Celtis douglasii Planch.]
- Douglas' honeysuckle 1899-1937 (5, 72, 97, 131, 158)
- Lonicera dioica L.[also reported as: Lonicera glaucescens (Rydb.) Rydb.]
- Douglas' knotweed [Douglas knot-weed, Douglas knotweed]
- 1899-Present (5, 50, 72, 97, 131, 155)
- Polygonum douglasii Greene
- Present (50)
- Polygonum douglasii Greene ssp. douglasii
- Douglas' rabbitbrush [Douglas rabbitbrush] 1942 (155)
- Chrysothamnus viscidiflorus (Hook.) Nutt.
- Douglas' sedge [Douglas sedge] 1913-Present (5, 50, 139, 155)
- Carex douglasii Boott.
- Douglas' thorn 1913 (5)
- Crataegus douglasii Lindl.
- Douglas' water hemlock [Douglas waterhemlock] 1942 (155)
- Cicuta maculata L. var. angustifolia Hook. [reported as: Cicuta douglasii (DC.) Coult. & Rose]
- Doura or Dourra (Modern Egypt)
- 1886-1900 (110, 158)
- Sorghum bicolor (L.) Moench ssp. bicolor [also reported as: Holcus sorghum L., Sorghum vulgare Pers. var. durra (Forsk.) Hubbard & Rehd.]
- 1896 (45)
- Sorghum halepense (L.) Pers. [reported as: Andropogon halepensis (L.) Brot. Fl.]
- Doura corn 1884 (87)
- Sorghum bicolor (L.) Moench ssp. bicolor [reported as: Sorghum vulgare Pers.]
- Dove-foot [Dovefoot] 1900-1929 (64, 157, 158)
- Geranium maculatum L.
- Dover grass 1913 (5)
- Lolium pratense (Huds.) S.J. Darbyshire [reported as: Festuca elatior L.]
- Dove's-dung [Dove's dung] 1919 (107)
- Ornithogalum umbellatum L.
- Dove's-foot [Dove's foot] 1671-1806 (35, 46) Josselyn
- Geranium carolinianum L.
- Down-hill-of-life 1900-1923 (5, 75, 156, 158) Lincolnton NC
- Lysimachia nummularia L.
- Downthistle [Down thistle, Down-thistle] 1900-1923 (5, 156, 158)
- Onopordum acanthium L. [also reported as: Onopordon acanthium L.]
- Downy agrimony 1977-1986 (3, 4)
- Agrimonia pubescens Wallr.
- Downy arrowhead 1942 (155)
- Sagittaria latifolia Willd. [reported as: Sagittaria pubescens Muhl. ex Nutt.]
- Downy arrow-wood [Downy arrowwood]
- 1977-Present (3, 4, 50)
- Viburnum rafinesquianum Schult.
- Present (50)
- Viburnum rafinesquianum var. affine (Bush ex Schneid.) House
- Downy blephilia 1907-1930 (5, 72, 82)
- Blephilia ciliata (L.) Benth. [also reported as: Blephilia ciliata (L.) Raf.]
- Downy blue violet 1977-1986 (3, 4)
- Viola sororia Willd.
- Downy brome or Downy brome grass [Downy brome-grass, Downy bromegrass] 1901-(3, 5, 56, 62, 72, 80, 85, 94, 119, 140, 143, 146, 148, 155)
- Bromus tectorum L.
- Downy carrion-flower [Downy carrionflower] Present (50)
- Smilax pulverulenta Michx.
- Downy chess 1936-1944 (122, 140, 143, 146) CO MT Quebec
- Bromus tectorum L.
- Downy forestiera 1942 (155)
- Forestiera pubescens Nutt.
- Downy gentian 1899-Present (4, 5, 50, 85, 93, 131, 138, 155, 157)
- Gentiana puberulenta J. Pringle [also reported as: Dasystephana puberula (Michx.) Small., Gentiana puberula Michx.]
- Downy goldenrod
- 1977 (3)
- Solidago petiolaris Aiton
- 1986 (4)
- Solidago petiolaris Aiton var. angusta (Torr. & Gray) Gray
- Downy grape 1895-1937 (2, 5, 72, 97, 122, 156)
- Vitis cinerea (Engelm.) Millard
- Downy ground-cherry [Downy ground cherry]
- 1977 (3)
- Physalis missouriensis Mackenzie & Bush [reported as: Physalis pubescens L. var. missouriensis (Mack. & Bush) Waterfall]
- 1986 (4)
- Physalis pubescens L.
- 1977 (3)
- Physalis pubescens L. var. integrifolia (Dunal) Waterfall
- Downy haw or Downy hawthorn 1923-1986 (3, 4, 93, 137, 138, 155)
- Crataegus mollis Scheele
- Downy Indian paintbrush
- Present (50)
- Castilleja purpurea (Nutt.) G. Don.
- Present (50)
- Castilleja purpurea (Nutt.) G. Don var. purpurea
- Downy lady's-slipper [Downy ladies' slipper, Downy ladies'-slipper, Downy lady's slipper] 1913-1937 (5, 97, 156)
- Cypripedium parviflorum Salisb.
- Downy milk-pea [Downy milk pea]
- 1986 (4)
- Galactia regularis (L.) B.S.P.
- Present (50)
- Galactia volubilis (L.) Britt.
- Downy mint 1930 (82) IA
- Pycnanthemum verticillatum (Michx.) Pers. var. pilosum (Nutt.) Cooperrider [reported as: Pycnanthemum pilosum Nutt.]
- Downy oat grass [Downy oat-grass] 1901-1913 (5, 94)
- Trisetum spicatum (L.) Richter [also reported as: Trisetum subspicatum (L.) Beauv.]
- Downy pagoda-plant Present (50)
- Blephilia ciliata (L.) Benth. [also reported as: Blephilia ciliata Raf.]
- Downy paintbrush [Downy paint-brush]
- 1977-1986 (3, 4)
- Castilleja sessiliflora Pursh
- 1932 (85) SD
- Castilleja sulphurea Rydb. [reported as: Castilleja rhexifolia Rydb.]
- Downy painted-cup [Downy painted cup, Downy paintedcup] 1907-Present (50, 5, 72, 93, 97, 122)
- Castilleja sessiliflora Pursh
- Downy persoon 1903 (66)
- Trisetum spicatum (L.) Richter [reported as: Trisetum molle]
- Downy phlox
- 1899-Present (5, 50, 93, 97, 131, 138, 155, 156)
- Phlox pilosa L.
- Present (50)
- Phlox pilosa L. ssp. fulgida (Wherry) Wherry
- Present (50)
- Phlox pilosa L. ssp. pilosa
- Downy ragged goldenrod [Downy ragged golden-rod]
- 1913-Present (5, 50, 97, 122)
- Solidago petiolaris Aiton
- Present (50)
- Solidago petiolaris Aiton var. angusta (Torr. & Gray) Gray
- Downy redroot [Downy red-root] 1907 (72) IA
- Ceanothus herbaceus Raf. [reported as: Ceanothus ovatus Desf. var. pubescens Torr. & Gray ex S. Wats.]
- Downy skullcap [Downy skull cap] 1907-1913 (5, 72) IA
- Scutellaria incana Biehler
- Downy sumac 1897 (145) KS
- Rhus copallinum L. [reported as: Rhus copallina L.]
- Downy thorn 1913 (5)
- Crataegus mollis Scheele
- Downy violet 1942 (155)
- Viola pubescens Aiton
- Downy whorled mint 1913-1936 (5, 93) Neb
- Mentha arvensis L. [also reported as: Mentha gentilis L.]
- Downy yellow violet
- 1913-Present (3, 4, 5, 50, 85, 138, 156)
- Viola pubescens Aiton
- Present (50)
- Viola pubescens Aiton var. pubescens
- Downy-leaf violet [Downy-leaved violet] 1895 (2)
- Viola pubescens Aiton
- Dozedaisy Present (50)
- Aphanostephus DC.
- Dr. Tinker's-weed [Dr. Tinker's weed] 1892 (6, 49, 58)
- Triosteum perfoliatum L.
- Dr. Witt's rattlesnake root 1879 (46) VA
- Prenanthes alba L. [reported as: Nabalus albus (L.) Hook.]
- Draba
- 1932-Present (1, 50, 155)
- Draba L.
- 100 AD (107) Dioscorides
- Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb. [reported as: Cochlearia armoracia L.]
- Draba milkvetch [Draba milk vetch] 1986 (4)
- Astragalus spatulatus Sheldon
- Drachen Aron (German) 1892 (6)
- Arisaema dracontium (L.) Schott [reported as: Arum dracontium L.]
- Dragge 1900-1913 (5, 157, 158)
- Lolium temulentum L.
- Dragon 1900 (158) corruption of tarragon
- Artemisia dracunculus L.
- Dragon arum
- 1923 (156)
- Arisaema Martens
- 1895 (2)
- Arisaema dracontium (L.) Schott
- Dragonhead [Dragon head, Dragon-head, Dragon's-head, Dragon's head]
- 1937 (122, 124) TX
- Arisaema dracontium (L.) Schott
- 1818-Present (1, 4, 10, 50, 93, 109, 138, 155, 156, 158) Neb
- Dracocephalum L. [also reported as: Dracocephalum (Tourn.) L., Moldavica (Tourn.) Adans.]
- 1894 (114) Neb
- Dracocephalum moldavica L.
- 1923-1977 (3, 85, 156)
- Dracocephalum parviflorum Nutt. [also reported as: Moldavica parviflora (Nutt.) Britton]
- 1937 (124) TX
- Nemastylis geminiflora Nutt. [reported as: Nemastylis acuta (Bart.) Herb.]
- 1840-1937 (5, 19, 85, 92, 93, 97, 124)
- Physostegia virginiana (L.) Benth. [also reported as: Dracocephalum virginianum L.]
- 1894-1932 (5, 75, 85, 156)
- Prunella vulgaris L.
- Dragonroot [Dragon root, Dragon-root, Dragon's root]
- 1932 (1)
- Arisaema Martens [reported as: Muricauda Small.]
- 1828-1922 (7, 49, 53, 58, 79, 92) NH
- Arisaema triphyllum (L.) Schott [also reported as: Arisaema triphyllum (L.) Torr., Arum triphyllum L.]
- 1907-1977 (3, 5, 6, 72, 93, 97, 109, 138, 156, 157)
- Arisaema dracontium (L.) Schott [also reported as: Arum dracontium L.]
- 1828 (7)
- Pterospora andromedea Nutt.
- Dragon-root jack-in-the-pulpit [Dragonroot jackinthepulpit] 1942 (155)
- Arisaema dracontium (L.) Schott
- Dragons 1879 (46)
- Arisaema triphyllum (L.) Schott [reported as: Arum triphyllum L.]
- Dragon's-blood [Dragon's blood] 1913-1923 (5, 156, 158)
- Geranium robertianum L. [also reported as: Robertiella robertiana (L.) Hanks.]
- Dragon's-blood [Dragon's blood] 1649 (46)
- Sanguinaria canadensis L.
- Dragon's-claw [Dragon's claw, Dragon's-claws, Dragon's-claws]
- 1900-1923 (5, 156, 157)
- Corallorrhiza maculata (Raf.) Raf.
- 1840-1922 (5, 19, 49, 53, 64, 92, 156, 158)
- Corallorrhiza odontorhiza (Willd.) Poir. [also reported as: Corallorrhiza odontorhiza (Willd.) Nutt.]
- Dragon's-mouth [Dragon's mouth] 1900-1923 (5, 156, 158)
- Antirrhinum majus L.
- Dragon-tail 1923 (156)
- Arisaema dracontium (L.) Schott
- Dragon-turnip [Dragon turnip] 1828-1929 (6, 7, 64, 92, 157, 158)
- Arisaema triphyllum (L.) Schott [also reported as: Arisaema triphyllum (L.) Torr., Arum triphyllum L.]
- Dragunbeifuss (German) 1900 (158)
- Artemisia dracunculus L.
- Drake
- 1919 (5, 107)
- Avena fatua L.
- 1900-1929 (157, 158)
- Lolium temulentum L.
- Drank 1900 (158)
- Lolium temulentum L.
- Draper's teasel 1900-1923 (5, 156, 158)
- Dipsacus fullonum L. [also reported as: Dipsacus sylvestris Huds.]
- Dravick 1900-1929 (157, 158)
- Lolium temulentum L.
- Drawke 1913 (5)
- Lolium temulentum L.
- Dreiblatt (German) 1900 (158)
- Menyanthes trifoliata L.
- Dreiblättriger Aron (German) 1828-1900 (7, 158)
- Arisaema triphyllum (L.) Schott [also reported as: Arisaema triphyllum (L.) Torr., Arum triphyllum L.]
- Dreiblattrige Lederbaum (German) 1892 (6)
- Ptelea trifoliata L.
- Dreifaltigkeitskraut (German) 1900 (158)
- Viola tricolor L.
- Dreilappige (German) 1892 (6)
- Asimina triloba (L.) Dunal [reported as: Asimina triloba Dunal.]
- Dreistein (German) 1892 (6)
- Triosteum perfoliatum L.
- Droke 1900-1929 (157, 158)
- Lolium temulentum L.
- Drooping avens 1900 (5, 158)
- Geum rivale L.
- Drooping bulbous saxifrage 1913 (5)
- Saxifraga cernua L.
- Drooping indigo-bush amorpha [Drooping indigobush amorpha] 1942 (155)
- Amorpha fruticosa L. [reported as: Amorpha fruticosa pendula]
- Drooping ladies' tresses 1913 (5)
- Spiranthes cernua (L.) L.C. Rich. [reported as: Ibidium cernuum (L.) House.]
- Drooping reed grass 1903 (66)
- Cinna latifolia (Trev. ex Goepp.) Griseb. [reported as: Cinna pendula Trin.]
- Drooping sedge
- 1923 (156)
- Carex crinita Lam.
- 1913-Present (5, 50)
- Carex prasina Wahl.
- Drooping trillium 1923 (156)
- Trillium cernuum L.
- Drooping wake-robin [Drooping wake robin] 1913 (5)
- Trillium flexipes Raf. [reported as: Trillium declinatum (A. Gray) Gleason, Trillium declinatum Raf.]
- Drooping willow 1900-1923 (5, 156, 158)
- Salix ×pendulina Wenderoth [babylonica × fragilis] or Salix ×sepulcralis Simonkai [alba × babylonica]
- Drooping woodreed 1942-Present (50, 3, 155)
- Cinna latifolia (Trev. ex Goepp.) Griseb.
- Drooping-flower ladies' traces [Drooping-flowered ladies' traces] 1878 (86)
- Spiranthes cernua (L.) L.C. Rich.
- Dropberry [Drop berry, Drop-berry]
- 1876 (92)
- Polygonatum biflorum (Walt.) Ell. [also reported as: Convallaria multiflora L. , Polygonatum multiflorum Kunth]
- 1900-1929 (156, 157, 158)
- Polygonatum biflorum (Walt.) Ell. var. commutatum (J.A. & J.H. Schultes) Morong [also reported as: Polygonatum commutatum (R. & S.) Dietr.]
- Dropseed [Drop seed, Drop-seed] or Drop-seed grass [Drop seed grass, Dropseed grass]
- 1884-1903 (66, 87)
- Muhlenbergia Schreb.
- 1896 (45)
- Muhlenbergia glomerata (Willd.) Trin.
- 1936 (93) Neb
- Muhlenbergia minutissima (Steud.) Swall. [also reported as: Sporobolus confusus (Fourn.) Vasey]
- 1913 (80) IA
- Muhlenbergia racemosa (Michx.) B.S.P.
- 1840-1938 (19, 45, 87, 92, 119)
- Muhlenbergia schreberi J.F. Gmel. [also reported as: Muhlenbergia diffusa Sr.]
- 1896-Present (1, 45, 50, 66, 93, 152)
- Sporobolus R. Br.
- 1958 (116) Neb
- Sporobolus compositus (Poir.) Merr. var. compositus [reported as: Sporobolus asper (Michx.) Kunth.]
- 1897-1901 (56, 144, 145) IA KS
- Sporobolus cryptandrus (Torr.) Gray
- 1913 (80) IA
- Sporobolus neglectus Nash
- 1897-1913 (80, 145) IA KS
- Sporobolus vaginiflorus (Torr. Gray) Wood [also reported as: Sporobolus vaginaeflorus Vasey]
- Drosera 1905-1917 (52, 54, 57)
- Drosera rotundifolia L.
- Drosere a Feuilles Rondes (French) 1892 (6)
- Drosera rotundifolia L.
- Drug fumitory
- 1942-Present (50, 155)
- Fumaria officinalis L.
- Present (50)
- Fumaria officinalis L. ssp. wirtgenii (W.D.J. Koch) Arcang.
- Drug speedwell 1942 (155)
- Veronica officinalis L.
- Drug sweetflag 1942 (155)
- Acorus calamus L.
- Drug wormseed goosefoot 1942 (155)
- Chenopodium ambrosioides L. var. ambrosioides [reported as: Chenopodium ambrosioides L. var. anthelminticum (L.) Aellen]
- Drummond'a hemicarpha [Drummond hemicarpha] 1977 (3)
- Lipocarpha drummondii (Nees) G. Tucker [reported as: Hemicarpha drummondii Nees]
- Drummond's aster [Drummond aster]
- Present (50)
- Symphyotrichum drummondii (Lindl.) Nesom [also reported as: Aster drummondii Lindl.]
- 1907-Present (3, 4, 5, 50, 72, 82, 93, 97, 122, 155)
- Symphyotrichum drummondii (Lindl.) Nesom var. drummondii
- Drummond's campion [Drummond campion]
- Present (50)
- Silene drummondii Hook.
- 1942-Present (50, 155)
- Silene drummondii Hook. var. drummondii [also reported as: Lychnis drummondii (Hook.) S. Wats.]
- Drummond's cooperia 1913-1937 (5, 97) OK
- Cooperia drummondii Herb.
- Drummond's dropseed Present (50)
- Sporobolus compositus (Poir.) Merr. var. drummondii (Trin.) Kartesz & Gandhi
- Drummond's evening-primrose [Drummond evening-primrose] 1923 (138)
- Oenothera drummondii Hook.
- Drummond's false pennyroyal [Drummond false pennyroyal, Drummond falsepennyroyal] 1942-Present (3, 4, 50, 155)
- Hedeoma drummondii Benth.
- Drummond's half-chaff sedge [Drummond's halfchaff sedge] Present (50)
- Lipocarpha drummondii (Nees) G. Tucker
- Drummond's ironweed [Drummond's iron-weed] 1913-1937 (5, 97) OK
- Vernonia missurica Raf.
- Drummond's milkvetch [Drummond milkvetch, Drummond milk vetch, Drummond's milk vetch] 1899-Present (4, 5, 50, 93, 131, 155)
- Astragalus drummondii Dougl. ex Hook.
- Drummond's onion Present (50)
- Allium drummondii Regel
- Drummond's pennyroyal 1899 (131) SD
- Hedeoma drummondii Benth.
- Drummond's pineweed [Drummond pineweed] 1942 (155)
- Hypericum drummondii (Grev. & Hook.) Torr. & Gray [reported as: Sarothra dummondii Grevar. & Hook.]
- Drummond's pink 1899-1913 (5, 131) SD
- Silene drummondii Hook. var. drummondii [also reported as: Lychnis drummondii (Hook.) S. Wats.]
- Drummond's rockcress [Drummond's rock cress, Drummond rockcress] 1913-Present (5, 50, 155)
- Arabis drummondii Gray
- Drummond's rush grass 1913 (5)
- Sporobolus compositus (Poir.) Merr. var. drummondii (Trin.) Kartesz & Gandhi [reported as: Sporobolus drummondii (Trin.) Vasey]
- Drummond's skullcap 1937-Present (4, 50, 97) OK
- Scutellaria drummondii Benth.
- Drummond's sleepy-daisy [Drummond's sleepydaisy] Present (50)
- Xanthisma texanum DC. ssp. drummondii (Torr. & Gray) Semple
- Drummond's St. John's-wort [Drummond's St. John's wort] 1907-1937 (5, 72, 93)
- Hypericum drummondii (Grev. & Hook.) Torr. & Gray
- Drummond's stitchwort Present (50)
- Minuartia drummondii (Shinners) McNeill
- Drummond's thistle [Drummond thistle] 1942-1986 (4, 155)
- Cirsium drummondii Torr. & Gray
- Drummond's willow herb 1899 (131) SD
- Epilobium saximontanum Hausskn. [reported as: Epilobium drummondii Hausskn.]
- Drunk 1900-1929 (5, 157, 158)
- Lolium temulentum L.
- Drunkards 1913-1923? (5, 157)
- Caltha palustris L.
- Dryland blueberry 1923-1949 (109, 138, 156)
- Vaccinium pallidum Aiton [also reported as: Vaccinium vacillans Kalm.]
- Dryopteris 1732 (46) Dillenius
- Gymnocarpium dryopteris (L.) Newman [reported as: Polypodium dryopteris [L.]]
- Dry-spike sedge [Dryspike sedge, Dry-spiked sedge] 1903-Present (5, 50, 66)
- Carex siccata Dewey [reported as: Carex foenea Willd., Carex foenea Willd. var. foenea]
- Dub (N. India) 1890 (67)
- Cynodon dactylon (L.) Pers.
- Dubba (Arabic) 1886 (110) refers to gourds in general
- Cucurbita maxima Dcne.
- Dubock (German) 1900 (158)
- Equisetum arvense L.
- Duchesnea Present (50)
- Duchesnea Sm.
- Duck grass 1885-1913 (5, 56, 90)
- Poa palustris L. [also reported as: Poa serotina Ehrh., Poa triflora Gilib.]
- Duck willow 1900-1923 (5, 156, 158)
- Salix alba L.
- Duck-acorn [Duck acorn]
- 1932 (1)
- Nelumbo Adans.
- 1900-1923 (106, 156, 158) seeds
- Nelumbo lutea Willd.
- Duck-grass 1923 (156)
- Stuckenia pectinatus (L.) Boerner [reported as: Potamogeton pectinatus L.]
- Duckmeat [Duck's meat, Duck meat, Duck's meat, Ducks' meat, Duck'smeat, Duck's-meat]
- 1814-1937 (122, 158, 167) TX
- Lemna L.
- 1876-1913 (5, 92)
- Lemna minor L.
- 1840-1923 (19, 156)
- Lemna trisulca L.
- Present (50)
- Spirodela Scheilen
- 1923-1977 (3, 156)
- Spirodela polyrhiza (L.) Schleid.
- 1900 (158)
- Wolffia Horkel ex Schleid.
- Duck-moss 1923 (156)
- Stuckenia pectinatus (L.) Boerner [reported as: Potamogeton pectinatus L.]
- Duck-potato 1949 (109)
- Sagittaria L.
- Duck-potato arrowhead [Duck potato arrowhead, Duckpotato arrowhead] 1942-1977 (3, 155)
- Sagittaria cuneata Sheld.
- Ducks
- 1894 (75) PA
- Cypripedium L.
- 1913-1923 (5, 156)
- Cypripedium candidum Muhl. ex Willd.
- 1913-1923 (5, 156)
- Cypripedium parviflorum Salisb.
- 1913-1923 (5, 156)
- Cypripedium reginae Walt. [also reported as: Cypripedium hirsutum Mill]
- Duck's-bill [Duck-bill] 1932 (1)
- Pedicularis L. [reported as: Pedicularis (Tourn.) L.]
- Duck's-foot [Ducks foot, Ducks' foot, Duck's foot, Duck foot] 1828-1923? (6, 7, 14, 64, 92, 156, 158) obsolete by 1923
- Podophyllum peltatum L.
- Duckweed
- 1818-Present (1, 10, 50, 93, 155, 158)
- Lemna L.
- 1977 (3, 92)
- Lemna minor L.
- 1932 (85) SD
- Lemna trisulca L.
- 1923 (156)
- Spirodela polyrhiza (L.) Schleid.
- Dudaim melon 1923-1949 (109, 138)
- Cucumis melo L. [also reported as: Cucumis melo L. var. dudaim Naud., Cucumis melo dudaim]
- Dudder grass [Dudder-grass] 1900-1913 (5, 158)
- Adiantum capillus-veneris L.
- Dudley's rush [Dudley rush] 1913-Present (3, 5, 50, 93, 159)
- Juncus dudleyi Wieg.
- Duke of Argyll's tea-tree 1900 (158)
- Lycium barbarum L. [reported as: Lycium vulgare Dunal]
- Dulcamara 1911-1922 (53, 55, 57)
- Solanum dulcamara L.
- Dulcamara (Spansih) 1900 (158)
- Solanum dulcamara L.
- Dulichium
- Present (50)
- Dulichium Rich.
- 1907-1913 (5, 72) IA
- Dulichium arundinaceum (L.) Britt.
- Dull-seed knotweed [Dullseed knotweed] 1942 (155)
- Polygonum convolvulus L.
- Dumb foxglove 1923 (156)
- Gentiana andrewsii Griseb.
- Dumb nettle 1876 (92)
- Lamium amplexicaule L.
- Dummond's soapberry 1913-1937 (5, 97)
- Sapindus saponaria L. var. drummondii (Hook. & Arn.) Bensons [also reported as: Sapindus drummondii Hook. & Arn.]
- Dunche-down 1900 (158)
- Typha latifolia L.
- Dune paspalum 1942 (155)
- Paspalum setaceum Michx. [reported as: Paspalum psammophilum Nash]
- Dunny nettle 1900 (158)
- Ballota nigra L.
- Durba (Bengal) 1890 (67)
- Cynodon dactylon (L.) Pers.
- Durchwachsener Wasserdost, Durchwasser Wasserdost, or Durchwasserdost (German) 1828-1900 (7, 158)
- Eupatorium perfoliatum L.
- Durchwachsener Wasserhanf (German) 1892-1900 (6, 158)
- Eupatorium perfoliatum L.
- Durfa grass [Durfa-grass] 1904-1908 (64, 69)
- Elymus repens (L.) Gould [also reported as: Agropyron repens (L.) Beauv.]
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