Cyperaceae taxon details
Carex utahensis Reznicek & D.F.Murray
1677336 (urn:lsid:marinespecies.org:taxname:1677336)
accepted
Species
terrestrial
Reznicek, A. A.; Murray, D. F. (2013). A re-evaluation of carex specuicola and the carex parryana complex (cyperaceae). Journal of the Botanical Research Institute of Texas, 7(1): 37-51., available online at https://www.biodiversitylibrary.org/page/54449927#page/45/mode/1up
page(s): 41 [details]
page(s): 41 [details]
Holotype , geounit Utah
Holotype, geounit Utah [details]
Description Loosely cespitose to colonial from ±elongate rhizomes 1.3–2.7 mm thick, rhizomes ca. 1–5 cm long between shoots,...
Description Loosely cespitose to colonial from ±elongate rhizomes 1.3–2.7 mm thick, rhizomes ca. 1–5 cm long between shoots, rhizome scales brown to purplish-brown, disintegrating into coarse fibers; culms 22–55 cm, stiff, ±erect, trigonous, papillose, 0.5–1.4 mm wide immediately below the inflorescence; phyllopodic, cataphylls and basal sheaths brown, the youngest often reddish-purple. Leaves 6–12, essentially basal; blades 3.8–35 cm long, 1.8–4.5 mm wide, much shorter than culms, ±folded, margins and midrib smooth to finely antrorsely scabrous distally, ±smooth adaxially, papillose abaxially; leaf sheaths 1.7–15 cm long, glabrous, ventrally whitish or pale brown, hyaline, thin, shallowly concave at the apex; ligules ca. 0.8–3.7 mm long, acute to rounded, shorter than wide, free portion whitish to pale brown. Inflorescences 2.4–8 cm long, with (2–)3–5(–6) spikes, terminal gynaecandrous or occasionally staminate, pistillate, or mixed, laterals pistillate; lateral spikes overlapping or the lower separate, lower two spikes 1.3–3.3 cm distant, lowermost ±sessile or on a papillose peduncle up to 13.7 mm long; lowest bracts ±bristle-like up to 5 cm long and 1.8 mm wide, sheathless, upper bracts abruptly reduced. Terminal spike 12–31 mm long, pistillate portion (0–)3.7–19.2 mm long, 4.5–7.8 mm wide, ca. (0–)6–50-flowered, staminate portion (0–)6–24.5 mm long, 1.8–3.1 mm wide, ca. (0–)20–65-flowered, peduncle 1.8–11.5 mm long. Lateral spikes 4–22.8 mm long, 3.5–6 mm wide, cylindric, densely flowered with ca.7–40 ascending perigynia. Staminate scales 2.3–3.7 mm long, 1.2–1.9 mm wide, obovate, reddishbrown to purple with narrow hyaline margins, especially distally, apex acute to obtuse or rounded, the green, 1–3-nerved center rarely prolonged into a ±scabrous-ciliate apiculus or short awn up to 0.5 mm long. Pistillate scales 1.9–3.3 mm long, 1.3–2.2 mm wide, reddish-brown to reddish-purple, hyaline margins inconspicuous, ovate to ±oblong, obtuse to acute, the green 1–3-nerved center sometimes prolonged into a scabrous-ciliate apiculus or awn up to 0.5 mm long. Perigynia 2.6–3.9 mm long, 1.6–2.5 mm wide, ±strongly flattened to concavo-convex in cross-section, ±obovate, not filled by the much smaller achene, herbaceous, papillose distally, green to reddish-purple distally, greenish to brown proximally, 2-nerved and frequently with a few faint nerves on the faces, tapering to a short stipitate base, contracted into an obscure to well defined cylindrical beak; beaks 0.1–0.4 mm long, papillose and sometimes setulose, green to purplish-brown, apex ±erose to obscurely bidentulate with teeth up to 0.1 mm long. Achenes 1.35–2 mm long, 0.9–1.3 mm wide, concavely tapering to a stipe 0.1–0.3 mm long, flattened-trigonous or sometimes lenticular in cross section; the convex sides narrowly elliptic in trigonous achenes, broadly elliptic in lenticular achenes, brown, smooth; apex usually apiculate with an apiculus up to 0.2 mm formed by the persistent style base; style deciduous; stigmas mostly 3, rarely up to 75 % 2. Anthers 3, 1.8–2.6 mm long, often with a conspicuous apiculus ca. 0.1–0.3 mm long [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex utahensis Reznicek & D.F.Murray. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677336 on 2025-09-16
Date
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2024-12-10 11:47:54Z
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Nomenclature
original description
Reznicek, A. A.; Murray, D. F. (2013). A re-evaluation of carex specuicola and the carex parryana complex (cyperaceae). Journal of the Botanical Research Institute of Texas, 7(1): 37-51., available online at https://www.biodiversitylibrary.org/page/54449927#page/45/mode/1up
page(s): 41 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 41 [details]
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, geounit Utah [details]
From editor or global species database
Description Loosely cespitose to colonial from ±elongate rhizomes 1.3–2.7 mm thick, rhizomes ca. 1–5 cm long between shoots, rhizome scales brown to purplish-brown, disintegrating into coarse fibers; culms 22–55 cm, stiff, ±erect, trigonous, papillose, 0.5–1.4 mm wide immediately below the inflorescence; phyllopodic, cataphylls and basal sheaths brown, the youngest often reddish-purple. Leaves 6–12, essentially basal; blades 3.8–35 cm long, 1.8–4.5 mm wide, much shorter than culms, ±folded, margins and midrib smooth to finely antrorsely scabrous distally, ±smooth adaxially, papillose abaxially; leaf sheaths 1.7–15 cm long, glabrous, ventrally whitish or pale brown, hyaline, thin, shallowly concave at the apex; ligules ca. 0.8–3.7 mm long, acute to rounded, shorter than wide, free portion whitish to pale brown. Inflorescences 2.4–8 cm long, with (2–)3–5(–6) spikes, terminal gynaecandrous or occasionally staminate, pistillate, or mixed, laterals pistillate; lateral spikes overlapping or the lower separate, lower two spikes 1.3–3.3 cm distant, lowermost ±sessile or on a papillose peduncle up to 13.7 mm long; lowest bracts ±bristle-like up to 5 cm long and 1.8 mm wide, sheathless, upper bracts abruptly reduced. Terminal spike 12–31 mm long, pistillate portion (0–)3.7–19.2 mm long, 4.5–7.8 mm wide, ca. (0–)6–50-flowered, staminate portion (0–)6–24.5 mm long, 1.8–3.1 mm wide, ca. (0–)20–65-flowered, peduncle 1.8–11.5 mm long. Lateral spikes 4–22.8 mm long, 3.5–6 mm wide, cylindric, densely flowered with ca.7–40 ascending perigynia. Staminate scales 2.3–3.7 mm long, 1.2–1.9 mm wide, obovate, reddishbrown to purple with narrow hyaline margins, especially distally, apex acute to obtuse or rounded, the green, 1–3-nerved center rarely prolonged into a ±scabrous-ciliate apiculus or short awn up to 0.5 mm long. Pistillate scales 1.9–3.3 mm long, 1.3–2.2 mm wide, reddish-brown to reddish-purple, hyaline margins inconspicuous, ovate to ±oblong, obtuse to acute, the green 1–3-nerved center sometimes prolonged into a scabrous-ciliate apiculus or awn up to 0.5 mm long. Perigynia 2.6–3.9 mm long, 1.6–2.5 mm wide, ±strongly flattened to concavo-convex in cross-section, ±obovate, not filled by the much smaller achene, herbaceous, papillose distally, green to reddish-purple distally, greenish to brown proximally, 2-nerved and frequently with a few faint nerves on the faces, tapering to a short stipitate base, contracted into an obscure to well defined cylindrical beak; beaks 0.1–0.4 mm long, papillose and sometimes setulose, green to purplish-brown, apex ±erose to obscurely bidentulate with teeth up to 0.1 mm long. Achenes 1.35–2 mm long, 0.9–1.3 mm wide, concavely tapering to a stipe 0.1–0.3 mm long, flattened-trigonous or sometimes lenticular in cross section; the convex sides narrowly elliptic in trigonous achenes, broadly elliptic in lenticular achenes, brown, smooth; apex usually apiculate with an apiculus up to 0.2 mm formed by the persistent style base; style deciduous; stigmas mostly 3, rarely up to 75 % 2. Anthers 3, 1.8–2.6 mm long, often with a conspicuous apiculus ca. 0.1–0.3 mm long [details]
