Show Lower Taxa Helianthus agrestis, Helianthus angustifolius, Helianthus annuus, Helianthus anomalus, Helianthus argophyllus, Helianthus arizonensis, Helianthus
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subfamilyCaryophyllaceae subfam. Alsinoideae genusScleranthus Show Lower Taxa Scleranthus annuus, Scleranthus perennis Linnaeus Sp. Pl. 1: 406. 1753 (as Schleranthus).
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Alsinoideae genusScleranthus speciesScleranthus annuus Show Lower Taxa Scleranthus annuus subsp. annuus Linnaeus Sp. Pl. 1: 406. 1753. Richard K. Rabeler
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aliceae, Erigeron allocotus, Erigeron alpiniformis, Erigeron anchana, Erigeron annuus, Erigeron aphanactis, Erigeron arenarioides, Erigeron argentatus, Erigeron
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names: Common eastern fleabane vergerette rude Endemic Synonyms: Erigeron annuus subsp. strigosus (Muhlenberg ex Willdenow) Wagenitz Treatment appears in
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Helianthus annuus subsp. lenticularis (Douglas ex Lindley) Cockerell Helianthus annuus var. lenticularis (Douglas ex Lindley) Steyermark Helianthus annuus var
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subfam. Alsinoideae genusScleranthus speciesScleranthus annuus subspeciesScleranthus annuus subsp. annuus John W. Thieret, Richard K. Rabeler WeedyIntroducedIllustrated
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fleabane vergerette annuelle Endemic Basionym: Aster annuus Linnaeus Sp. Pl. 2: 875. 1753 Synonyms: Erigeron annuus var. discoideus (Victorin & J. Rousseau) Cronquist
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camphor-daisy Endemic Basionym: Sideranthus annuus Rydberg Bull. Torrey Bot. Club 31: 653. 1905 Synonyms: Haplopappus annuus (Rydberg) Cory Machaeranthera annua (Rydberg)
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et al., Syst. Veg. 2: 95. 1817. Robert Kral Illustrated Basionym: Scirpus annuus Allioni Fl. Pedem. 2: 277, plate 88, fig. 5. 1785 Fimbristylis diphylla
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transitional” to Erigeron annuus (A. Cronquist 1994) and, as implied by the synonymy, may be more appropriately treated as part of E. annuus (D. Frey et al. 2003)
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Heiser proposed that H. bolanderi originated through hybridization between H. annuus and H. exilis; molecular studies by Rieseberg et al. do not support this
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1989) show that all are closely related. Documented hybridization with H. annuus further complicates the situation. The treatment by Heiser et al. is followed
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hosts reported in the Florida study were Jacquemontia tamnifolia, Helianthus annuus (sunflower), and Ipomoea batatas (sweet potato) (Herbaugh et al.). In an
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parents are H. annuus and H. petiolaris (L. H. Rieseberg et al. 1990). It occupies a different habitat type than either parent (H. annuus usually on clay-based
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provided evidence that Helianthus anomalus is a hybrid species derived from H. annuus and H. petiolaris, and subsequent work has confirmed and extended that hypothesis
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Africa, Australia. Helianthus argophyllus hybridizes naturally with H. annuus. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Helianthus"
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adventive elsewhere (e.g., introduced in Ontario). Hybrids with with H. annuus and H. debilis have been reported. None. None. window.propertiesFromHig
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(1991) demonstrated that it is of hybrid origin; parental species are H. annuus and H. petiolaris. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"
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var. multiflorus (Linnaeus) A. Gray; its parents are H. decapetalus and H. annuus. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Helianthus"
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