Asteraceae | |
Ambrosia absynthifolia
| Michx. | Fl. Bor.-Amer. 2: 183 | 1803 |
Asteraceae | |
Ambrosia acanthicarpa
| Hook. | Fl. Bor.-Amer. 1(6): 309 | 1833 |
Asteraceae | |
Ambrosia acuminata
| (Brandegee) W.W. Payne | J. Arnold Arbor. 45: 410 | 1964 |
Asteraceae | |
Ambrosia ambrosioides
| (Delpino) W.W. Payne | J. Arnold Arbor. 45(4): 410 | 1964 |
Asteraceae | |
Ambrosia aptera
| DC. | Prodr. 5: 527 | 1836 |
Asteraceae | ! |
Ambrosia arborescens
| Mill. | Gard. Dict. (ed. 8) no. 5 | 1768 |
Asteraceae | * |
Ambrosia arborescens
| Brandeg. | | |
Asteraceae | ! |
Ambrosia artemisiifolia
| L. | Sp. Pl. 2: 988 | 1753 |
Asteraceae | |
Ambrosia artemisioides
| Meyen & Walp. | Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(suppl. 1): 268 | 1843 |
Asteraceae | ** |
Ambrosia artemisioides
| Willd. | Sp. Pl. 4: 378 | 1805 |
Asteraceae | |
Ambrosia bidentata
| Michx. | Fl. Bor.-Amer. 2: 182 | 1803 |
Asteraceae | |
Ambrosia bipinnatifida
| (Nutt.) Greene | Man. Bot. San Francisco Bay 187 | 1894 |
Asteraceae | |
Ambrosia bryantii
| (Curran) Payne | Madroño 16: 234 | 1962 |
Asteraceae | |
Ambrosia californica
| Rydb. | N. Amer. Fl. 33(1): 20 | 1922 |
Asteraceae | |
Ambrosia camphorata
| (Greene) W.W. Payne | J. Arnold Arbor. 45: 414 | 1964 |
Asteraceae | |
Ambrosia canescens
| A. Gray | Proc. Amer. Acad. Arts 17: 217 | 1882 |
Asteraceae | |
Ambrosia carduacea
| (Greene) Payne | J. Arnold Arbor. 45: 416 | 1964 |
Asteraceae | |
Ambrosia caudata
| (Rydb.) Shinners | Field & Lab. 17(4): 174 | 1949 |
Asteraceae | ! |
Ambrosia chamissonis
| (Less.) Greene | Man. Bot. San Francisco Bay 188 | 1894 |
Asteraceae | |
Ambrosia cheiranthifolia
| A. Gray | Rep. U.S. Mex. Bound. 2(1): 87 | 1859 |
Asteraceae | |
Ambrosia chenopodiifolia
| (Benth.) W.W. Payne | J. Arnold Arbor. 45(4): 419 | 1964 |
Asteraceae | |
Ambrosia chilensis
| Hook. & Arn. | J. Bot. (Hooker) 3: 311 | 1841 |
Asteraceae | |
Ambrosia confertiflora
| DC. | Prodr. 5: 526 | 1836 |
Asteraceae | |
Ambrosia cordifolia
| (A. Gray) W.W. Payne | J. Arnold Arbor. 45(4): 421 | 1964 |
Asteraceae | |
Ambrosia coronopifolia
| Torr. & A. Gray | Fl. N. Amer. 2(2): 291 | 1842 |
Asteraceae | |
Ambrosia crithmifolia
| DC. | Prodr. 5: 525 | 1836 |
Asteraceae | |
Ambrosia cumanensis
| Kunth | Nov. Gen. Sp. (folio ed.) 4: 216–217 | 1820 [1818] |
Asteraceae | |
Ambrosia deltoidea
| (Torr.) W.W. Payne | J. Arnold Arbor. 45(4): 421 | 1964 |
Asteraceae | |
Ambrosia dentata
| (Cabrera) M.O. Dillon | Phytologia 56: 337 | 1984 |
Asteraceae | |
Ambrosia divaricata
| (Brandegee) Payne | Pap. Michigan Acad. Sci. 49: 42 | 1964 |
Asteraceae | |
Ambrosia diversifolia
| (Piper) Rydb. | N. Amer. Fl. 33(1): 18 | 1922 |
Asteraceae | |
Ambrosia dumosa
| (A. Gray) W.W. Payne | J. Arnold Arbor. 45(4): 422 | 1964 |
Asteraceae | |
Ambrosia elatior
| L. | Sp. Pl. 2: 987–988 | 1753 |
Asteraceae | |
Ambrosia eriocentra
| (A. Gray) W.W. Payne | J. Arnold Arbor. 45(4): 423 | 1964 |
Asteraceae | |
Ambrosia flexuosa
| (A. Gray) W.W. Payne | J. Arnold Arbor. 45: 424 | 1964 |
Asteraceae | |
Ambrosia frutescens
| Lam. | Encycl. 1: 128 | 1783 |
Asteraceae | ! |
Ambrosia fruticosa
| Medik. | Hist. & Commentat. Acad. Elect. Sci. Theod.-Palat. 3: 244 | 1775 |
Asteraceae | * |
Ambrosia fruticosa
| DC. | Prodr. 5: 525 | 1836 |
Asteraceae | |
Ambrosia glandulosa
| Scheele | Linnaea 22(2): 157–159 | 1849 |
Asteraceae | |
Ambrosia grayi
| (A. Nelson) Shinners | Field & Lab. 17(4): 174 | 1949 |
Asteraceae | |
Ambrosia × helenae
| Rouleau | Naturaliste Canad. 71: 272 | 1944 |
Asteraceae | |
Ambrosia hispida
| Pursh | Fl. Amer. Sept. 2: 743 | 1814 [1813] |
Asteraceae | |
Ambrosia humi
| León de la Luz & Rebman | Bol. Soc. Bot. México 86: 66–70, f. 1–2 | 2010 |
Asteraceae | |
Ambrosia ilicifolia
| (A. Gray) W.W. Payne | J. Arnold Arbor. 45(4): 425 | 1964 |
Asteraceae | |
Ambrosia integrifolia
| Muhl. ex Willd. | Sp. Pl. 4(1): 375 | 1805 |
Asteraceae | |
Ambrosia × intergradiens
| W.H. Wagner | Rhodora 60(715): 191–203, f. 1B [map], 2B, 3B, 4(6–11), pl. 1234 | 1958 |
Asteraceae | |
Ambrosia johnstoniorum
| Henrickson | Brittonia 32(3): 340 | 1980 |
Asteraceae | |
Ambrosia lindheimeriana
| Scheele | Linnaea 22: 156 | 1849 |
Asteraceae | |
Ambrosia linearis
| (Rydb.) W.W. Payne | J. Arnold Arbor. 45(4): 425 | 1964 |
Asteraceae | |
Ambrosia longifolia
| Sessé & Moc. | Fl. Mexic. (ed. 2) 216. | 1894 |
Asteraceae | |
Ambrosia longistylis
| Nutt. | Trans. Amer. Philos. Soc., n.s. 7: 344 | 1840 |
Asteraceae | |
Ambrosia magdalenae
| (Brandegee) W.W. Payne | J. Arnold Arbor. 45: 426 | 1964 |
Asteraceae | |
Ambrosia maritima
| L. | Sp. Pl. 2: 988 | 1753 |
Asteraceae | * |
Ambrosia maritima
| Vell. | Fl. Flumin. Icon. 10: , t. 26 | 1827 [1831] |
Asteraceae | |
Ambrosia media
| Rydb. | Bull. Torrey Bot. Club 37(3): 127 | 1910 |
Asteraceae | |
Ambrosia microcephala
| DC. | Prodr. 5: 527 | 1836 |
Asteraceae | |
Ambrosia monogyra
| (Torr. & A. Gray) Strother & B.G. Baldwin | Madroño 49(3): 143 | 2002 |
Asteraceae | |
Ambrosia monophylla
| (Walter) Rydb. | N. Amer. Fl. 33(1): 17 | 1922 |
Asteraceae | |
Ambrosia nivea
| (B.L. Rob. & Fernald) W.W. Payne | J. Arnold Arbor. 45: 426 | 1964 |
Asteraceae | |
Ambrosia orobanchifera
| Meyen | Reise 1: 444 | 1834 |
Asteraceae | |
Ambrosia palustris
| Sessé & Moc. | Fl. Mexic. (ed. 2) 216 | 1894 |
Asteraceae | ** |
Ambrosia paniculata
| Michx. | Fl. Bor.-Amer. 2: 183 | 1803 |
Asteraceae | |
Ambrosia pannosa
| W.W. Payne | Brittonia 18: 31–32 | 1966 |
Asteraceae | |
Ambrosia parvifolia
| W.W. Payne | Brittonia 18: 35 | 1966 |
Asteraceae | * |
Ambrosia peruviana
| Willd. | Sp. Pl. 4(1): 377 | 1805 |
Asteraceae | ! |
Ambrosia peruviana
| All. | Auct. Syn. 15 | 1773 |
Asteraceae | |
Ambrosia pitcheri
| Torr. | Companion Bot. Mag. 1(4): 99–100 | 1835 |
Asteraceae | |
Ambrosia × platyspina
| (Seaman) Strother & B.G. Baldwin | Madroño 49(3): 144 | 2002 |
Asteraceae | |
Ambrosia polystachya
| DC. | Prodr. 5: 526 | 1836 |
Asteraceae | |
Ambrosia porcheri
| P.D. McMillan & L. Prevost | Phytoneuron 2022-15: 1 | 2022 |
Asteraceae | ! |
Ambrosia psilostachya
| DC. | Prodr. 5: 526 | 1836 |
Asteraceae | |
Ambrosia pumila
| (Nutt.) A. Gray | Proc. Amer. Acad. Arts 17: 217 | 1882 |
Asteraceae | |
Ambrosia rugelii
| Rydb. | N. Amer. Fl. 33(1): 19 | 1922 |
Asteraceae | |
Ambrosia salsola
| (Torr. & A. Gray) Strother & B.G. Baldwin | Madroño 49(3): 143 | 2002 |
Asteraceae | |
Ambrosia sandersonii
| Welsh | Rhodora 95(883/884): 396–397, f. 2 | 1993 |
Asteraceae | |
Ambrosia scabra
| Hook. & Arn. | J. Bot. (Hooker) 3: 311 | 1841 |
Asteraceae | |
Ambrosia senegalensis
| DC. | Prodr. 5: 525 | 1836 |
Asteraceae | |
Ambrosia simulans
| Shinners | Field & Lab. 17(4): 173–174 | 1949 |
Asteraceae | |
Ambrosia striata
| Rydb. | Brittonia 1(2): 96–97 | 1931 |
Asteraceae | |
Ambrosia tarapacana
| Phil. | Anales Mus. Nac. Santiago de Chile 50 | 1891 |
Asteraceae | |
Ambrosia tenuifolia
| Spreng. | Syst. Veg. [Sprengel] 3: 851 | 1826 |
Asteraceae | |
Ambrosia tomentosa
| Nutt. | Gen. N. Amer. Pl. 2: 186 | 1818 |
Asteraceae | ! |
Ambrosia trifida
| L. | Sp. Pl. 2: 987 | 1753 |
Asteraceae | |
Ambrosia variabilis
| Rydb. | Brittonia 1(2): 97 | 1931 |
Asteraceae | |
Ambrosia velutina
| O.E. Schulz | Symb. Antill. 7: 88 | 1911 |