taxonID	type	description	language	source
E93BA788D93359E8A2859F64159BE2B9.taxon	description	Figs 3 A – I, 4 A – J Chinese name: yáng chūn tái cǎo (阳春薹草)	en	Lu, Yi-Fei, Meng, De-Chang, Jin, Xiao-Feng (2025): Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China. PhytoKeys 251: 257-270, DOI: 10.3897/phytokeys.251.142179
E93BA788D93359E8A2859F64159BE2B9.taxon	diagnosis	Diagnosis. This new species is similar to Carex cryptostachys Brongn., but differs in having spikes 4 – 8, ovoid or nearly globose, 3 – 8 mm long (vs. spikes 6 – 10, cylindrical, 9 – 25 mm long), utricles 2.5 – 3.5 mm long (vs. 3.5 – 4.5 mm long), nutlets 2 – 2.2 mm long, with styles thickened at base (vs. 2.5 – 3 mm long, style base not thickened), leaves 3 – 6 mm wide (vs. 6 – 16 mm wide) and culms 8 – 25 cm tall (vs. 10 – 35 cm tall).	en	Lu, Yi-Fei, Meng, De-Chang, Jin, Xiao-Feng (2025): Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China. PhytoKeys 251: 257-270, DOI: 10.3897/phytokeys.251.142179
E93BA788D93359E8A2859F64159BE2B9.taxon	description	Description. Perennial herbs. Rhizomes elongate, woody, thick. Culms lateral, 8 – 25 cm tall, compressed-trigonous, slender, smooth, base with dark-brown or brown sheaths, sometimes splitting into fibres. Leaves far longer than culms, apex slender long-caudate; blades 3 – 6 mm wide, thinly leathery, flat, upper margins and both surfaces scabrous. Bracts short-setaceous, sheathed; sheaths 3 – 10 mm long, with the most proximal one longer than the others. Spikes 4 – 8, androgynous, ovoid or nearly globose, 3 – 8 mm long, base with a 3 – 17 mm long slender peduncle, staminate part ca. 2 mm long, slightly exserted or hidden in pistillate flowers, pistillate part 3 – 6 mm long, densely 4 – 12 - flowered; peduncles exserted from bract sheaths. Staminate glumes ovate, 1.5 – 2 mm long, yellow-white, obtuse at apex, green 3 - veined dorsal costa. Pistillate glumes obovate or ovate, 2 – 2.5 mm long, pale yellow-green, acute or obtuse at apex, green 3 - veined dorsal costa. Utricles yellow-green, broadly rhombic-obovoid (excluding beak), obtusely compressed-trigonous, 2.5 – 3.5 mm long (including beak), longer than pistillate glumes, yellow-green, membranous, distinctly thinly veined, sparsely pubescent on upper dorsal surface and margins, densely pubescent on ventral surface, base cuneate and narrowed into a ca. 0.5 mm long stipe, apex gradually contracted into a ca. 0.3 mm long beak, orifice 2 - lobed with minute teeth. Nutlets tightly enveloped, rhombic-ovoid, trigonous, yellow, 2 – 2.2 mm long, with 3 angles constricted at middle, sides concave above and below, base with a 0.3 – 0.7 mm long stipe; style thickened at base, persistent, coiled; stigmas 3.	en	Lu, Yi-Fei, Meng, De-Chang, Jin, Xiao-Feng (2025): Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China. PhytoKeys 251: 257-270, DOI: 10.3897/phytokeys.251.142179
E93BA788D93359E8A2859F64159BE2B9.taxon	etymology	Etymology. The specific epithet ‘ yangchunensis ’ refers to the type locality of this new species in Yangchun County.	en	Lu, Yi-Fei, Meng, De-Chang, Jin, Xiao-Feng (2025): Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China. PhytoKeys 251: 257-270, DOI: 10.3897/phytokeys.251.142179
E93BA788D93359E8A2859F64159BE2B9.taxon	distribution	Distribution and habitat. The new species has been collected from the limestone regions of Kongdongyan Scenic Spot near Yangchun County, in Heshui and Chunwan townships. It is believed to be distributed in similar limestone hills near Yangchun County. It is currently known to grow on limestone landscapes at lower elevations of 60 – 80 m.	en	Lu, Yi-Fei, Meng, De-Chang, Jin, Xiao-Feng (2025): Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China. PhytoKeys 251: 257-270, DOI: 10.3897/phytokeys.251.142179
