Taxa Artemisia abrotanum, Artemisia alaskana, Artemisia annua, Artemisia biennis, Artemisia californica, Artemisia carruthii, Artemisia douglasiana, Artemisia
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genusHymenopappus Show Lower Taxa Hymenopappus artemisiifolius, Hymenopappus biennis, Hymenopappus carrizoanus, Hymenopappus filifolius, Hymenopappus flavescens
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subsectionOenothera subsect. Oenothera Show Lower Taxa Oenothera argillicola, Oenothera biennis, Oenothera elata, Oenothera glazioviana, Oenothera grandiflora, Oenothera
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Crepis acuminata, Crepis atribarba, Crepis bakeri, Crepis barbigera, Crepis biennis, Crepis bursifolia, Crepis capillaris, Crepis elegans, Crepis foetida, Crepis
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familyAsteraceae tribeAsteraceae tribe Cichorieae genusLactuca Show Lower Taxa Lactuca biennis, Lactuca canadensis, Lactuca floridana, Lactuca graminifolia, Lactuca hirsuta
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genusPotentilla sectionPotentilla sect. Rivales Show Lower Taxa Potentilla biennis, Potentilla norvegica, Potentilla rivalis, Potentilla supina Poeverlein
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Anthemideae genusArtemisia subgenusArtemisia subg. Artemisia speciesArtemisia biennis Willdenow Phytographia, 11. 1794. Leila M. Shultz Common names: Biennial
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familyAsteraceae tribeAsteraceae tribe Cichorieae genusCrepis speciesCrepis biennis Linnaeus Sp. Pl. 2: 807. 1753. David J. Bogler Common names: Rough hawksbeard
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genusLactuca speciesLactuca biennis (Moench) Fernald Rhodora 42: 300. 1940. John L. Strother IllustratedEndemic Basionym: Sonchus biennis Moench Methodus, 545
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Heliantheae) subtribe Hymenopappinae genusHymenopappus speciesHymenopappus biennis B. L. Turner Rhodora 58: 256, figs. 24, 38. 1956. John L. Strother Endemic
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speciesOenothera biennis Linnaeus Sp. Pl. 1: 346. 1753. Warren L. Wagner Synonyms: Brunyera biennis (Linnaeus) Bubani Oenothera biennis subsp. caeciarum Munz
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Potentilleae genusPotentilla sectionPotentilla sect. Rivales speciesPotentilla biennis Greene Fl. Francisc., 65. 1891. Barbara Ertter, James L. Reveal Common names:
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Raven W. Dietrich & Stubbe O. biennis subsp. austromontana Munz O. biennis var. austromontana (Munz) Cronquist O. biennis var. nutans (G. F. Atkinson &
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strigosa Rydberg Mem. New York Bot. Gard. 1: 278. 1900 Synonyms: Oenothera biennis var. strigosa (Rydberg) Cronquist O. cheradophila Bartlett O. procera Wooton
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apicaborta R. R. Gates O. atrovirens Shull & Bartlett O. biennis var. cruciata (Nuttall) Torrey & A. Gray O. biennis var. parviflora (Linnaeus) Torrey & A. Gray O
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Oenothera hookeri Torrey & A. Gray Fl. N. Amer. 1: 493. 1840 Synonyms: O. biennis var. hookeri (Torrey & A. Gray) B. Boivin O. communis var. hookeri (Torrey
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Wagner Synonyms: Oenothera albinervis R. R. Gates O. bauri Boedijn O. biennis var. canescens Torrey & A. Gray O. canovertex Hudziok O. canovirens E. S
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Bolbonac silver-dollar penny-flower IntroducedIllustrated Synonyms: Lunaria biennis Moench Lunaria inodora Lamarck Treatment appears in FNA Volume 7. Treatment
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Hoch Syst. Bot. Monogr. 83: 212. 2007. Warren L. Wagner Basionym: Gaura biennis Linnaeus Sp. Pl. 1: 347. 1753 Treatment appears in FNA Volume 10. Herbs
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Missouri Bot. Gard. 70: 195. 1983. Warren L. Wagner Basionym: Oenothera biennis var. hirsutissima A. Gray ex S. Watson Proc. Amer. Acad. Arts 8: 579, 603
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