Cyperaceae taxon details
Carex xueyingiana H.J.Yang & Han Xu
1677404 (urn:lsid:marinespecies.org:taxname:1677404)
accepted
Species
terrestrial
Yang, H.; Xu, H.; Deng, Y.; Li, Y. (2017). Carex xueyingiana (Cyperaceae), a new species from Hainan Island, China. Phytotaxa, 308(2): 239-248., available online at https://doi.org/10.11646/phytotaxa.308.2.5
page(s): 246 [details]
page(s): 246 [details]
Holotype IBSC, geounit Hainan
Holotype IBSC, geounit Hainan [details]
Description Perennial herb, 20–30 cm tall; rhizomes long. Culms loosely tufted, 6–12 cm tall, 0.3–0.8 mm thick, lateral,...
Description Perennial herb, 20–30 cm tall; rhizomes long. Culms loosely tufted, 6–12 cm tall, 0.3–0.8 mm thick, lateral, ascending to erect, trigonous, with up to three closed sheaths at base. Leaves basal, significantly longer than culms, 25–40 cm long, 4–6 mm wide, papery, flat, comprising a linear blade and an short sheath, densely long pubescent on both sides. Some fibrous sheaths persistent at the base of shoots. Inflorescence racemose, comprising 1–2 spikes. Bracts sheath-like, sometimes with a very short setaceous blade, 5–6 mm long, much shorter than inflorescence, adaxially glabrous, abaxially pubescent. Spikes 1–2, androgynous, 7–10 × 2–2.5 mm, oblong, the male part shorter or equaling the female part, both densely flowered; male part cylindric, 3–5 × 1–1.5 mm; female part obovate-lanceolate, 4–5 × 2–2.5 mm. Staminate scales broadly ovate, 2–2.3 × 1.2–1.6 mm, pale yellowish green, glabrous, blunt at apex. Stamens 3, 1 mm long; the anther remarkably longer than the filament. Pistillate scales 3.5–3.8 × 3–3.2 mm including awn, triangular-ovate, green, abaxially pubescent, 3-veined, the middle-nerve extending at apex into a 1mm long awn. Style hairy, thickened at base, stigmas 2 or 3. Perigynium 2.3–2.5 × 1.2–1.5 mm, broadly elliptic, ompressed-trigonous, membranous, shorter than the pistillate scales, beakless, the orifice obliquely truncate. Ovary 0.7–0.8 × 0.3–0.4 mm, elliptic, glabrous, ripe achenes not known. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex xueyingiana H.J.Yang & Han Xu. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677404 on 2025-09-12
Date
action
by
2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Yang, H.; Xu, H.; Deng, Y.; Li, Y. (2017). Carex xueyingiana (Cyperaceae), a new species from Hainan Island, China. Phytotaxa, 308(2): 239-248., available online at https://doi.org/10.11646/phytotaxa.308.2.5
page(s): 246 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 246 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Other
additional source
Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors 
[request]
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype IBSC, geounit Hainan [details]
From editor or global species database
Description Perennial herb, 20–30 cm tall; rhizomes long. Culms loosely tufted, 6–12 cm tall, 0.3–0.8 mm thick, lateral, ascending to erect, trigonous, with up to three closed sheaths at base. Leaves basal, significantly longer than culms, 25–40 cm long, 4–6 mm wide, papery, flat, comprising a linear blade and an short sheath, densely long pubescent on both sides. Some fibrous sheaths persistent at the base of shoots. Inflorescence racemose, comprising 1–2 spikes. Bracts sheath-like, sometimes with a very short setaceous blade, 5–6 mm long, much shorter than inflorescence, adaxially glabrous, abaxially pubescent. Spikes 1–2, androgynous, 7–10 × 2–2.5 mm, oblong, the male part shorter or equaling the female part, both densely flowered; male part cylindric, 3–5 × 1–1.5 mm; female part obovate-lanceolate, 4–5 × 2–2.5 mm. Staminate scales broadly ovate, 2–2.3 × 1.2–1.6 mm, pale yellowish green, glabrous, blunt at apex. Stamens 3, 1 mm long; the anther remarkably longer than the filament. Pistillate scales 3.5–3.8 × 3–3.2 mm including awn, triangular-ovate, green, abaxially pubescent, 3-veined, the middle-nerve extending at apex into a 1mm long awn. Style hairy, thickened at base, stigmas 2 or 3. Perigynium 2.3–2.5 × 1.2–1.5 mm, broadly elliptic, ompressed-trigonous, membranous, shorter than the pistillate scales, beakless, the orifice obliquely truncate. Ovary 0.7–0.8 × 0.3–0.4 mm, elliptic, glabrous, ripe achenes not known. [details]
