Helianthus porteri, Helianthus praecox, Helianthus pumilus, Helianthus radula, Helianthus resinosus, Helianthus salicifolius, Helianthus schweinitzii
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integrifolium, Silphium laciniatum, Silphium mohrii, Silphium perfoliatum, Silphium radula, Silphium terebinthinaceum, Silphium wasiotense Linnaeus Sp. Pl. 2: 919
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Lower Taxa Solidago mollis, Solidago nana, Solidago nemoralis, Solidago radula, Solidago velutina (Mackenzie) G. L. Nesom Phytologia 75: 8. 1993. John
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macrophylla, Eurybia merita, Eurybia mirabilis, Eurybia paludosa, Eurybia radula, Eurybia radulina, Eurybia saxicastelli, Eurybia schreberi, Eurybia sibirica
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Ecliptinae genusSilphium speciesSilphium radula Show Lower Taxa Silphium radula var. gracile, Silphium radula var. radula Nuttall Trans. Amer. Philos. Soc.,
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Heliantheae) subtribe Ecliptinae genusSilphium speciesSilphium radula varietySilphium radula var. radula Jennifer A. Clevinger Endemic Synonyms: Silphium reverchonii Bush
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Heliantheae) subtribe Ecliptinae genusSilphium speciesSilphium radula varietySilphium radula var. gracile (A. Gray) J. A. Clevinger Novon 14: 277. 2004. Jennifer
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pendula Small Solidago radula var. laeta (Greene) Fernald Solidago radula var. rotundifolia (de Candolle) A. Gray Solidago radula var. stenolepis Fernald
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(tribe Heliantheae) subtribe Helianthinae genusHelianthus speciesHelianthus radula (Pursh) Torrey & A. Gray Fl. N. Amer. 2: 321. 1842. Edward E. Schilling
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speciesEurybia radula (Aiton) G. L. Nesom Phytologia 77: 261. 1995. Luc Brouillet Common names: Low rough aster aster rude Endemic Basionym: Aster radula Aiton
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Tenn., Tex., Va. The name Silphium asperrimum has been misapplied to S. radula. Based upon examination of a photograph of the type and of the original
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northeastern North America and occasional confusion with other taxa (e.g., Eurybia radula), the hybrid O. ×blakei also is described below. Brouillet, L. and J.-P
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parent is found today. Some reports of this hybrid are misidentified Eurybia radula, which it superficially resembles. None. None. window.propertiesFromHig
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more sparsely strigose leaves that are similar in appearance to those of S. radula but are not scabrous have been treated as var. angustata Shinners. Those
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