Cyperaceae taxon details
Carex pengii X.F.Jin & C.Z.Zheng
1677929 (urn:lsid:marinespecies.org:taxname:1677929)
accepted
Species
terrestrial
Jin, X. F. & Chao-Zhong, Z. (2013). Taxonomy of Carex sect. Rhomboidales (Cyperaceae).
page(s): 222 [details] Available for editors
[request]
page(s): 222 [details] Available for editors
[request]
Description Herbs perennial. Rhizome short, ligneous. Culms central, ca. 15 cm tall, trigonous, covered with dark brown fibrous sheaths...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Taxon. Carex sect. Rhomboidales 222. 2013 to Taxon. Carex sect....
Description Herbs perennial. Rhizome short, ligneous. Culms central, ca. 15 cm tall, trigonous, covered with dark brown fibrous sheaths at base. Leaves longer than culms; leaf-blade yellowish green, flat, revolute, leathery, 2. 5-4 mm wide, acuminate at apex» scabrous on upper margins. Involucral bracts leaf-like, longer than inflorescence, sheathed; sheaths ca. 0.5 cm long, obliquely truncate at orifice. Inflorescence paniculate, with 3 spikes, subcapitate» aggregated; terminal spike staminate, clavate» ca. 1.5 cm long, ca. 3 mm wide, with a short peduncle at base; lateral spikes androgynous, cylindrical, 1. 3-1. 7 cm long, 8-9 mm wide, densely flowered, bearing a ca. 0.5 cm long staminate part at apex; peduncles enclosed in sheaths. Staminate scales oblong-ovate, glaucous, 4. 5-5 mm long, obtuse at apex, grayish green l-veined costa on dorsal surface. Pistillate scales obovate-lanceolate, glaucous or pale yellowish, 3-3. 5 mm long, acuminate at apex, green 3-veined costa on dorsal surface. Perigynia ovoid (excluding beak), 5. 5-6 mm long, longer than pistillate scales (including beak), obliquely patent, obtusely trigonous, papery, pale yellow, distinctly veined, glabrous, gradually contracted into a ca. 2. 5 mm long beak; orifice 2-lobed with long teeth. Stigmas 3; style slightly thicken at base. Achenes tightly enveloped, ovoid, trigonous» ca. 3 mm long (including beak), castaneous, sides concave below, shortly curved, stipitate at base, abruptly contracted into a ca. 1 mm long beak at apex» beak erect.
[details]
[details]
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Taxon. Carex sect. Rhomboidales 222. 2013 to Taxon. Carex sect....
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Taxon. Carex sect. Rhomboidales 222. 2013 to Taxon. Carex sect. Rhomboidales : 222 (2013), information provided by Alan E. on email Jun. 07 2021 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex pengii X.F.Jin & C.Z.Zheng. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677929 on 2025-09-12
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Jin, X. F. & Chao-Zhong, Z. (2013). Taxonomy of Carex sect. Rhomboidales (Cyperaceae).
page(s): 222 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 222 [details] Available for editors
[request]basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Other
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Herbs perennial. Rhizome short, ligneous. Culms central, ca. 15 cm tall, trigonous, covered with dark brown fibrous sheaths at base. Leaves longer than culms; leaf-blade yellowish green, flat, revolute, leathery, 2. 5-4 mm wide, acuminate at apex» scabrous on upper margins. Involucral bracts leaf-like, longer than inflorescence, sheathed; sheaths ca. 0.5 cm long, obliquely truncate at orifice. Inflorescence paniculate, with 3 spikes, subcapitate» aggregated; terminal spike staminate, clavate» ca. 1.5 cm long, ca. 3 mm wide, with a short peduncle at base; lateral spikes androgynous, cylindrical, 1. 3-1. 7 cm long, 8-9 mm wide, densely flowered, bearing a ca. 0.5 cm long staminate part at apex; peduncles enclosed in sheaths. Staminate scales oblong-ovate, glaucous, 4. 5-5 mm long, obtuse at apex, grayish green l-veined costa on dorsal surface. Pistillate scales obovate-lanceolate, glaucous or pale yellowish, 3-3. 5 mm long, acuminate at apex, green 3-veined costa on dorsal surface. Perigynia ovoid (excluding beak), 5. 5-6 mm long, longer than pistillate scales (including beak), obliquely patent, obtusely trigonous, papery, pale yellow, distinctly veined, glabrous, gradually contracted into a ca. 2. 5 mm long beak; orifice 2-lobed with long teeth. Stigmas 3; style slightly thicken at base. Achenes tightly enveloped, ovoid, trigonous» ca. 3 mm long (including beak), castaneous, sides concave below, shortly curved, stipitate at base, abruptly contracted into a ca. 1 mm long beak at apex» beak erect.[details]
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Taxon. Carex sect. Rhomboidales 222. 2013 to Taxon. Carex sect. Rhomboidales : 222 (2013), information provided by Alan E. on email Jun. 07 2021 [details]
