Cyperaceae taxon details
Carex vizarronensis Gómez-Sánchez, Cabrera-Luna, S.González & Reznicek
1677371 (urn:lsid:marinespecies.org:taxname:1677371)
accepted
Species
terrestrial
Gomez-Sanchez, M., et al. (2012). Carex vizarronensis (Cyperaceae), a New Species of Carex section Schiedeanae from Central IVIexico. <em>Systematic Botany.</em> 37(4): 926-928.
page(s): 926 [details] Available for editors
[request]
page(s): 926 [details] Available for editors
[request]
Holotype QMEX, geounit Mexico
Holotype QMEX, geounit Mexico [details]
Description Perennial herb, densely cespitóse, forming small clumps from short, stout, fibrillose rhizomes; culms to 95 cm tall,...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Syst. Bot. 37(4): 926. 2012 [26 Oct 2012] to Syst. Bot. 37: 926...
Description Perennial herb, densely cespitóse, forming small clumps from short, stout, fibrillose rhizomes; culms to 95 cm tall, erect, usually exceeding the leaves, rigonous, densely papillose, slightly bulbous-thickened basally; bladeless basal sheaths light-brown, promptly rupturing and becoming strongly fibrillose (as well as the leaves of previous years). Leaves 3-5(-7), clustered on the proximal 1/3-1/8 of the culms; blades ± coriaceous, 4.5-58 cm long, (0.6-)0.8-3(-3.3) mm wide, flat to revolute, attenuate, becoming channeled and triangular at apex, densely papUlose adaxiaUy and abaxiaUy, midrib prominent on the abaxial side, margins and midrib sparsely scabridulose; distal leaf sheaths tight, densely papillose abaxiaUy, pale green to stramineous dorsally, hyaline ventrally or sometimes sparingly red-dotted, concave; Ugules to 0.5 mm long, sUghtly convex to truncate, often reduced to the free portion of 0.3-0.4(-0.5) mm wide, yellowish to dark brown and sometimes sparingly red-dotted, minutely cUiate. Vegetative shoots ca. 7-12 cm taU with ca. 3-i leaves. Inflorescences 4.3-7.5 cm long, 0.5-1.5 cm wide, linear-oblong, with 4-7 spikes, the distal 3-4 approximate, sessile or subsessile, the proximal most 6-30 mm distant, subsessUe; proximal most bracts 9-24 cm long, folióse, green, densely papillose, antrorsely scabridulose at the margins near the base, the distal bracts gradually reduced; terminal spike 5-15 mm long, section lower pistillate 7-10 mm long, 4.5-6.5 mm wide, (9-)15-25-flowered, upper section staminate 2.5-5.5 mm long, 2.5-5.5 mm wide, 15-30-flowered, usuaUy conspicuous, protruding beyond the perigynia; lateral spikes smaUer except the most proximal one which is more or less simUar to the terminal; iriflorescence prophyUs ± distended and asymmetrical, and similar color, venation, and pubescence to the perigynia. PistUlate scales (1.8-)2.5-3.7 mm long, 0.9-1.8 mm wide, equal or longer than the perigynia, except sometimes the most proximal spikes, ovate to ovatelanceolate, glabrous, 1-3-nerved green to reddish brown center, whitish to pale brown sides (sometimes 1-3 additional fine nerves per side) and broad hyaline margins, acute to acuminate; staminate scales 2.4-4.1 mm long, 0.5-1.4 mm wide, lanceolate, ± acute, 1-2-nerved green to brown center, whitish to pale brown sides, and hyaline margins. Eerigynia 2.4-3 mm long, 1.3-1.6 mm wide, ascending to spreading-ascending, trigonous with broadly elliptic sides, adaxial side convex, tapering into a beak, conspicuously 8-10-nerved, abaxial sides flat, 5-7-nerved, two of the nerves stronger and prolonged into the beak, tapering to the base, abruptly contracted into a broad, short, corky stipe 0.4-0.7 mm long, 0.4-0.6 mm wide, often with a constriction between the perigynium body and the stipe; green when immature, later brown to black, thick-coriaceous, not tuberculate, hairs appressed over entire perigynium, mostly retrorse, antrorse on the distal part of the perigynium, a few pointing in other directions, 0.05-0.15 mm long, terete, whitish or a few reddish brown; beak 0.4-0.8 mm long, the apex bidentate with teeth 0.2-0.5 mm long. Anthers 3, 1.5-2.1 mm long, longitudinally dehiscent; filaments exserted ca. 1.2-1.6 mm, ca. 0.04 mm wide, filiform, and much narrower than anthers, flexuous, whitish. Style straight, puberulent, stigmas 3, ca. 1.4-2 mm long, ñexuous, with papillae hair-like, longer than the width of the stigmas. Achenes 1.5-2 mm long, 1.1-1.4 mm wide, trigonous with flat to convex, obovate to broadly elliptic sides, whitish to pale-brown, ± sessile, shortly apiculate. [details]
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Syst. Bot. 37(4): 926. 2012 [26 Oct 2012] to Syst. Bot. 37: 926...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Syst. Bot. 37(4): 926. 2012 [26 Oct 2012] to Syst. Bot. 37: 926 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex vizarronensis Gómez-Sánchez, Cabrera-Luna, S.González & Reznicek. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677371 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Gomez-Sanchez, M., et al. (2012). Carex vizarronensis (Cyperaceae), a New Species of Carex section Schiedeanae from Central IVIexico. <em>Systematic Botany.</em> 37(4): 926-928.
page(s): 926 [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): 926 [details] Available for editors
[request]basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
Holotype QMEX, geounit Mexico [details]
From editor or global species database
Description Perennial herb, densely cespitóse, forming small clumps from short, stout, fibrillose rhizomes; culms to 95 cm tall, erect, usually exceeding the leaves, rigonous, densely papillose, slightly bulbous-thickened basally; bladeless basal sheaths light-brown, promptly rupturing and becoming strongly fibrillose (as well as the leaves of previous years). Leaves 3-5(-7), clustered on the proximal 1/3-1/8 of the culms; blades ± coriaceous, 4.5-58 cm long, (0.6-)0.8-3(-3.3) mm wide, flat to revolute, attenuate, becoming channeled and triangular at apex, densely papUlose adaxiaUy and abaxiaUy, midrib prominent on the abaxial side, margins and midrib sparsely scabridulose; distal leaf sheaths tight, densely papillose abaxiaUy, pale green to stramineous dorsally, hyaline ventrally or sometimes sparingly red-dotted, concave; Ugules to 0.5 mm long, sUghtly convex to truncate, often reduced to the free portion of 0.3-0.4(-0.5) mm wide, yellowish to dark brown and sometimes sparingly red-dotted, minutely cUiate. Vegetative shoots ca. 7-12 cm taU with ca. 3-i leaves. Inflorescences 4.3-7.5 cm long, 0.5-1.5 cm wide, linear-oblong, with 4-7 spikes, the distal 3-4 approximate, sessile or subsessile, the proximal most 6-30 mm distant, subsessUe; proximal most bracts 9-24 cm long, folióse, green, densely papillose, antrorsely scabridulose at the margins near the base, the distal bracts gradually reduced; terminal spike 5-15 mm long, section lower pistillate 7-10 mm long, 4.5-6.5 mm wide, (9-)15-25-flowered, upper section staminate 2.5-5.5 mm long, 2.5-5.5 mm wide, 15-30-flowered, usuaUy conspicuous, protruding beyond the perigynia; lateral spikes smaUer except the most proximal one which is more or less simUar to the terminal; iriflorescence prophyUs ± distended and asymmetrical, and similar color, venation, and pubescence to the perigynia. PistUlate scales (1.8-)2.5-3.7 mm long, 0.9-1.8 mm wide, equal or longer than the perigynia, except sometimes the most proximal spikes, ovate to ovatelanceolate, glabrous, 1-3-nerved green to reddish brown center, whitish to pale brown sides (sometimes 1-3 additional fine nerves per side) and broad hyaline margins, acute to acuminate; staminate scales 2.4-4.1 mm long, 0.5-1.4 mm wide, lanceolate, ± acute, 1-2-nerved green to brown center, whitish to pale brown sides, and hyaline margins. Eerigynia 2.4-3 mm long, 1.3-1.6 mm wide, ascending to spreading-ascending, trigonous with broadly elliptic sides, adaxial side convex, tapering into a beak, conspicuously 8-10-nerved, abaxial sides flat, 5-7-nerved, two of the nerves stronger and prolonged into the beak, tapering to the base, abruptly contracted into a broad, short, corky stipe 0.4-0.7 mm long, 0.4-0.6 mm wide, often with a constriction between the perigynium body and the stipe; green when immature, later brown to black, thick-coriaceous, not tuberculate, hairs appressed over entire perigynium, mostly retrorse, antrorse on the distal part of the perigynium, a few pointing in other directions, 0.05-0.15 mm long, terete, whitish or a few reddish brown; beak 0.4-0.8 mm long, the apex bidentate with teeth 0.2-0.5 mm long. Anthers 3, 1.5-2.1 mm long, longitudinally dehiscent; filaments exserted ca. 1.2-1.6 mm, ca. 0.04 mm wide, filiform, and much narrower than anthers, flexuous, whitish. Style straight, puberulent, stigmas 3, ca. 1.4-2 mm long, ñexuous, with papillae hair-like, longer than the width of the stigmas. Achenes 1.5-2 mm long, 1.1-1.4 mm wide, trigonous with flat to convex, obovate to broadly elliptic sides, whitish to pale-brown, ± sessile, shortly apiculate. [details]Taxonomic remark Source in seed data: ipni Update namepublishedIn from Syst. Bot. 37(4): 926. 2012 [26 Oct 2012] to Syst. Bot. 37: 926 (2012), information provided by Alan E. on email Jun. 07 2021 [details]
