Epimedium platypetalum

Notice:

This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions. If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale): Liu S, Liu L, Huang X, Zhu Y, Xu Y (2017) A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae). PhytoKeys (78) : 23–36, doi. Versioned wiki page: 2017-03-23, version 137889, https://species-id.net/w/index.php?title=Epimedium_platypetalum&oldid=137889 , contributors (alphabetical order): Pensoft Publishers. Citation formats to copy and paste BibTeX: @article{Liu2017PhytoKeys, author = {Liu, Shaoxiong AND Liu, Linjian AND Huang, Xiaofang AND Zhu, Yuye AND Xu, Yanqin}, journal = {PhytoKeys}, publisher = {Pensoft Publishers}, title = {A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)}, year = {2017}, volume = {}, issue = {78}, pages = {23--36}, doi = {10.3897/phytokeys.78.11640}, url = {http://phytokeys.pensoft.net/articles.php?id=11640}, note = {Versioned wiki page: 2017-03-23, version 137889, https://species-id.net/w/index.php?title=Epimedium_platypetalum&oldid=137889 , contributors (alphabetical order): Pensoft Publishers.} } RIS/ Endnote: TY - JOUR T1 - A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae) A1 - Liu S A1 - Liu L A1 - Huang X A1 - Zhu Y A1 - Xu Y Y1 - 2017 JF - PhytoKeys JA - VL - IS - 78 UR - http://dx.doi.org/10.3897/phytokeys.78.11640 SP - 23 EP - 36 PB - Pensoft Publishers M1 - Versioned wiki page: 2017-03-23, version 137889, https://species-id.net/w/index.php?title=Epimedium_platypetalum&oldid=137889 , contributors (alphabetical order): Pensoft Publishers. M3 - doi:10.3897/phytokeys.78.11640 Wikipedia/ Citizendium: <ref name="Liu2017PhytoKeys">{{Citation | author = Liu S, Liu L, Huang X, Zhu Y, Xu Y | title = A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae) | journal = PhytoKeys | year = 2017 | volume = | issue = 78 | pages = 23--36 | pmid = | publisher = Pensoft Publishers | doi = 10.3897/phytokeys.78.11640 | url = http://phytokeys.pensoft.net/articles.php?id=11640 | pmc = | accessdate = 2024-12-23 }} Versioned wiki page: 2017-03-23, version 137889, https://species-id.net/w/index.php?title=Epimedium_platypetalum&oldid=137889 , contributors (alphabetical order): Pensoft Publishers.</ref> See also the citation download page at the journal.

Taxonavigation

Ordo: ORDO
Familia: FAMILIA
Genus: Epimedium

Name

Epimedium platypetalum K. I. Meyer – Wikispecies link – Pensoft Profile

• Epimedium platypetalum K. I. Meyer, Repert. Spec. Nov. Regni Veg. Beih., 12: 380. 1922. Type: China. Sichuan: Wenchuan, alt. 1600 m, Limpricht 1386 (Syntypes, WRSLE, WU).

Description

Flowering stem 25–35 cm long. Rhizome thin, short or long-creeping, 1–3 mm in diameter. Leaves basal and cauline, trifoliolate; leaflets subrounded, ca. 4.5 × 4 cm, apex rounded, base deeply cordate with regularly rounded lobes, terminal leaflet with equal rounded lobes, lateral leaflets oblique with outer lobe large and rounded, inner lobe smaller and rounded, margin spinose-serrate, abaxially pilose. Flowering stem with 1 trifoliolate (rarely 5-foliolate) leaves, sometimes 2 opposite trifoliolate leaves, occasionally 2 opposite unifoliolate leaves. Inflorescence raceme, 2–6-flowered, 7–12 cm long, almost glabrous. Flowers ca. 10 mm in diameter, yellow, pedicels 0.5–1 cm long, glandular hairs. Outer sepals 4, green, triangular-lanceolate, ca. 2 ×1 mm. Inner sepals 4, purple-red, ovate, ca. 4 × 1.5 mm. Petals 4, yellow, spurless, ca. 6–8 × 4–5 mm, oblong, apex rounded. Stamens ca. 3 mm; anthers yellow, ca. 2 mm.

Distribution and habitat

Epimedium platypetalum occurs in Sichuan and Shanxi, often on mountain slopes with elevations ranging from 1300 m to 2800 m.

Phenology

Epimedium platypetalum flowers from April to May, and fruits from May to June.

IUCN Red List category

Epimedium platypetalum should be designated as Vulnerable (VU) according to the International Union for Conservation of Nature (IUCN) Red List criteria (IUCN 2015), because of habitat destruction.

Specimens examined

China. Sichuan: Maoxian, S. Y. Chen 5210 (NAS). Nanjiang, B. L. Guo A56 (IMD). Shanxi: Nanzheng, J.X. Lv, Y.P. Lv & X.F. Zhuo E84009 (PE), E84010 (PE), E84052 (PE), S.X. Liu, J.X. Zhu & L.J. Liu 2016020 (JXCM).

Taxon Treatment

• Liu, S; Liu, L; Huang, X; Zhu, Y; Xu, Y; 2017: A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae) PhytoKeys, (78): 23-36. doi

Images

Figure 2. Photos of E. ecalcaratum, E. platypetalum, and E. campanulatum. A–B Flower of E. ecalcaratum C Rhizome of E. ecalcaratum D Morphology of E. ecalcaratum E–F Flower of E. platypetalum G Rhizome of E. platypetalum H Morphology of E. platypetalum I–J Flower of E. campanulatum K Rhizome of E. campanulatum L Morphology of E. campanulatum.  Figure 3. Population variation of leaves morphology in E. ecalcaratum, E. platypetalum, and E. campanulatum. A–G E. ecalcaratum H–L E. platypetalum M–Q E. campanulatum.