familyHypericaceae genusTriadenum Show Lower Taxa Triadenum fraseri, Triadenum tubulosum, Triadenum virginicum, Triadenum walteri Rafinesque Fl. Tellur. 3: 78.
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speciesTriadenum tubulosum (Walter) Gleason Phytologia 2: 289. 1947. Norman K. B. Robson EndemicIllustrated Basionym: Hypericum tubulosum Walter Fl. Carol
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Hypericaceae Violaceae Triadenum virginicum Triadenum fraseri Triadenum tubulosum Triadenum walteri Hybanthus verticillatus Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey
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petiolata Pursh Gardenia petiolata (Pursh) Farwell Hypericum paludosum Choisy H. tubulosum var. walteri (J. F. Gmelin) Lott Triadenum petiolatum Treatment appears
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Hypericaceae Violaceae Triadenum virginicum Triadenum fraseri Triadenum tubulosum Triadenum walteri Hybanthus verticillatus Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey
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its range, the leaves are longer and narrower, approaching those of T. tubulosum and T. walteri; it is nearly always distinguishable from the northern T
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