Hypericum nitidum, Hypericum nudiflorum, Hypericum prolificum, Hypericum sphaerocarpum, Hypericum suffruticosum, Hypericum tenuifolium, Hypericum tetrapetalum
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speciesHypericum sphaerocarpum Michaux Fl. Bor.-Amer. 2: 78. 1803. Norman K. B. Robson Endemic Synonyms: Brathydium chamaenerium Spach B. sphaerocarpum (Michaux)
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Torrey Bot. Club 5: 170. 1894. Ihsan A. Al-Shehbaz Basionym: Nasturtium sphaerocarpum A. Gray Mem. Amer. Acad. Arts, n. s. 4: 6. 1849 Synonyms: Cardamine globosa
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N.C., S.C., Tex. Hypericum cistifolium is woodier in habit than H. sphaerocarpum and has shorter leaves, smaller flowers, narrower sepals, narrower capsules
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W.Va. Hypericum adpressum is more herbaceous and rhizomatous than H. sphaerocarpum and has narrower capsules and smaller seeds. The plants with aerenchymatous
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Ind., Ky., Tenn. Hypericum dolabriforme is superficially similar to H. sphaerocarpum, to which W. P. Adams (1962) related it. Apart from the narrow leaves
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Tenn., Vt., Wash., W.Va., Wis. Hypericum ellipticum is related to H. sphaerocarpum, differing by the shorter, herbaceous, rhizomatous habit, shorter leaves
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