Triadenum
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Triadenum, known as marsh St. John's worts,[2]Template:R/superscript is a small genus of flowering plants in the family Hypericaceae. The genus is characterized by opposite, blunt-tipped leaves and pink flowers with 9 stamens. They are distributed in North America and eastern Asia.
Acceptance of this genus is varied. Kew's Plants of the World Online[3]Template:R/superscript and the Database of Vascular Plants of Canada (VASCAN)[4]Template:R/superscript treat it as a junior synonym of Hypericum and the Flora of North America[1]Template:R/superscript and Flora of China[5]Template:R/superscript treat it as separate. The situation arises from B. R. Ruhfel et al. (2011)'s genetic study describing Triadenum as subsumed under Hypericum and later genetic results disagreeing with this assessment.[6]Template:R/superscript Under Hypericum, the species are mostly treated as the section Hypericum sect. Elodea.[7]Template:R/superscript
Species
Triadenum contains the following 6 species according to Flora of North America and Flora of China:[1]Template:R/superscript[5]Template:R/superscript
- Triadenum breviflorum (Wall.)
- Triadenum fraseri (Spach) Gleason
- Triadenum japonicum (Thunb.)
- Triadenum tubulosum (Walter) Gleason
- Triadenum virginicum (L.) Raf.
- Triadenum walteri (J.F.Gmel.) Gleason
References
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- ^ a b c Page Module:Citation/CS1/styles.css has no content."Triadenum in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2021-12-15.
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- ^ Page Module:Citation/CS1/styles.css has no content."Triadenum Raf". Plants of the World Online.
- ^ Page Module:Citation/CS1/styles.css has no content."Triadenum". VASCAN. Retrieved 17 June 2022.
- ^ a b Page Module:Citation/CS1/styles.css has no content."Triadenum in Flora of China @ efloras.org". www.efloras.org.
- ^ Page Module:Citation/CS1/styles.css has no content.Robson, N. K. (2021). "Studies in the genus Hypericum L.(Hypericaceae) 9. Addenda, corrigenda, keys, lists and general discussion". Phytotaxa. 72: 1–111. doi:10.11646/phytotaxa.72.1.1.
- ^ Page Module:Citation/CS1/styles.css has no content.Robson, Norman K.B. (11 April 2016). "And then came molecular phylogenetics—Reactions to a monographic study of Hypericum (Hypericaceae)". Phytotaxa. 255 (3): 181. doi:10.11646/phytotaxa.255.3.1.
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