identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
CAD17E2FC962523DAF55E9EA300D0A35.text	CAD17E2FC962523DAF55E9EA300D0A35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sedum qingyuanense X. W. Yi, Z. Y. Xie & Q. Fan 2025	<div><p>Sedum qingyuanense X. W. Yi, Z. Y. Xie &amp; Q. Fan sp. nov.</p><p>Figs 2, 3, 4, 5</p><p>Chinese name.</p><p>清远景天 (Qīng yuăn JĬng tiān).</p><p>Type.</p><p>China • Guangdong Province, Qingyuan City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=112.9807&amp;materialsCitation.latitude=23.7553" title="Search Plazi for locations around (long 112.9807/lat 23.7553)">TaiHe Grotto</a>; on rocky cliff; 23.7553°N, 112.9807°E; 238 m a. s. l.; 18 April 2025; X. W. Yi &amp; K. Tang QY- 1001 (holotype: SYS 00237022) .</p><p>Diagnosis.</p><p>The new species is distinguished from its congeners by the combination of creeping sterile stems, conspicuous pseudopetiolate, and small linear-spatulate sepals (1.8–3.2 × 0.5–1.5 mm). It differs from close species, S. jinglanii, S. alfredii and S. emarginatum in having creeping sterile stems (vs. ascending sterile stems), smaller sepals and more distinctly pseudopetiolate. In addition, we have also provided photographs of S. emarginatum and S. alfredii (Fig. 6).</p><p>Description.</p><p>Perennial herb, entirely glabrous. Stems succulent; fertile stems suberect 5–20 cm long, apex erect, usually 3 - branched above; sterile stems present, creeping, rooting at nodes and producing new rosettes. Leaves opposite, conspicuously pseudopetiolate; leaf blades spatulate to broadly obovate, margin entire, apex emarginate, base attenuate with a spur, 1.1–5.9 × 0.5–1.4 cm. Cymes 3–8 cm in diameter, usually 3 - branched, multiflowered; bracts obovate with an obtuse apex. Flowers sessile, 7–10 mm long, pentamerous, actinomorphic. Sepals 5, linear-spatulate, 1.8–3.2 × 0.5–1.5 mm, base spurred. Petals 5, yellow, lanceolate to lanceolate-oblong, 4–6 × 1.1–1.7 mm, apex acuminate, base connate ca. 0.3 mm. Stamens 10 antepetalous stamens ca. 3 mm long, adnate to petals for ca. 0.3 mm; antesepalous stamens ca. 4.5 mm long. Carpels 5, lanceolate, erect, connate at base, 3–4 mm long. Follicles obliquely divergent, many-seeded; placentation marginal. Seeds ovoid, brown at maturity, 0.6–0.8 mm long.</p><p>Phenology.</p><p>Flowering from March – April; fruiting in May.</p><p>Etymology.</p><p>The specific epithet refers to the distribution of this species in Qingyuan City.</p><p>Distribution and habitat.</p><p>The new species is endemic to Qingyuan City, Guangdong Province, southern China, growing on rocky cliffs at 200–300 m a. s. l.</p><p>Conservation status.</p><p>The Extent of Occurrence (EOO) and Area of Occupancy (AOO) were calculated following the guidelines of the International Union for Conservation of Nature (IUCN 2024). All known occurrences of Sedum qingyuanense are currently restricted to a single locality — TaiHe Grotto, Qingxin District, Qingyuan City, Guangdong Province, China. The EOO was estimated using the minimum convex polygon method based on this single site, resulting in an EOO &lt;2 km 2. The AOO was assessed using a standard 2 km × 2 km grid system, and as all individuals fall within one grid cell, the AOO is inferred to be ≤ 4 km 2. Given that the entire population occurs in a heavily visited tourist area along roadsides and is subject to ongoing anthropogenic threats (e. g., trampling, habitat disturbance), and considering its extremely limited distribution, Sedum qingyuanense meets the criteria for Critically Endangered (CR) under B 1 ab (iii) + 2 ab (iii).</p></div>	https://treatment.plazi.org/id/CAD17E2FC962523DAF55E9EA300D0A35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Yi, Xiao-Wei;Xie, Zhi-Yi;Shen, Xue-Gui;Xu, Wei;Zeng, Qiu-Gen;Tang, Ke;Huang, Yan-Shuang;Fan, Qiang	Yi, Xiao-Wei, Xie, Zhi-Yi, Shen, Xue-Gui, Xu, Wei, Zeng, Qiu-Gen, Tang, Ke, Huang, Yan-Shuang, Fan, Qiang (2025): Sedum qingyuanense (Crassulaceae), a new species from Qingyuan, Guangdong, China. PhytoKeys 268: 45-58, DOI: 10.3897/phytokeys.268.174287
