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Cyperaceae taxon details

Carex tahoensis Smiley

1676141  (urn:lsid:marinespecies.org:taxname:1676141)

accepted
Species
terrestrial
Smiley, F. J. (1921). A report upon the boreal flora of the Sierra Nevada of California. <em>Botany.</em> 2., available online at https://www.biodiversitylibrary.org/page/15151368#page/5/mode/1up
page(s): 119 [details] 
Description Plants densely cespitose. Culms 15–45 cm. Leaves: sheaths adaxially white-hyaline, summits usually U-shaped; distal ligules...  
Description Plants densely cespitose. Culms 15–45 cm. Leaves: sheaths adaxially white-hyaline, summits usually U-shaped; distal ligules 0.8–1.5 mm; blades 3–5 per fertile culm, occasionally folded, if not folded, margins revolute, 5–10 cm × 1.5–2.5(–3) mm, thick, tough. Inflorescences dense to ± open, whitish, gold, or brown, (1.5–)2–3(–3.7) cm × 6–12 mm; proximal internode 4–11 mm; 2d internode 2.5–7 mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 4–6, distant, distinct, lanceloid to ovoid, 10–15 × 4–6 mm, base tapered to attenuate, apex rounded to acute. Pistillate scales red-brown, with straw colored to tan midstripe, usually ovate, to 4–5 mm, equaling, covering at least perigynium bodies, margin white, 0.2–0.6 mm wide, apex obtuse to short-awned. Perigynia appressed or appressed-ascending, green, gold, or coppery, conspicuously 7–14-veined abaxially, conspicuously 3–8-veined adaxially, lanceolate or ovate to oblanceolate or obovate, plano-convex, (3.7–)4.5–6 × 1.5–2.6 mm, 0.5–0.7(–0.9) mm thick, margin flat, including wing 0.2–0.4(–0.5) mm wide; beak brown to gold or reddish, often white-hyaline at tip, ± cylindric, ± ciliate-serrulate for distal 0.2–0.7 mm, abaxial suture with white margin, or sometimes inconspicuous, distance from beak tip to achene (0.6–)1–2 mm. Achenes lanceolate to ovate or obovate, 1.9–2.4 × 1.2–1.6 mm, 0.5–0.7 mm thick. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Univ. Calif. Publ. Bot. 9: 119 1921 to Univ. Calif. Publ. Bot. 9: 119...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Univ. Calif. Publ. Bot. 9: 119 1921 to Univ. Calif. Publ. Bot. 9: 119 (1921), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex tahoensis Smiley. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676141 on 2025-09-11
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed

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Nomenclature

original description Smiley, F. J. (1921). A report upon the boreal flora of the Sierra Nevada of California. <em>Botany.</em> 2., available online at https://www.biodiversitylibrary.org/page/15151368#page/5/mode/1up
page(s): 119 [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 
   

From editor or global species database
Description Plants densely cespitose. Culms 15–45 cm. Leaves: sheaths adaxially white-hyaline, summits usually U-shaped; distal ligules 0.8–1.5 mm; blades 3–5 per fertile culm, occasionally folded, if not folded, margins revolute, 5–10 cm × 1.5–2.5(–3) mm, thick, tough. Inflorescences dense to ± open, whitish, gold, or brown, (1.5–)2–3(–3.7) cm × 6–12 mm; proximal internode 4–11 mm; 2d internode 2.5–7 mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 4–6, distant, distinct, lanceloid to ovoid, 10–15 × 4–6 mm, base tapered to attenuate, apex rounded to acute. Pistillate scales red-brown, with straw colored to tan midstripe, usually ovate, to 4–5 mm, equaling, covering at least perigynium bodies, margin white, 0.2–0.6 mm wide, apex obtuse to short-awned. Perigynia appressed or appressed-ascending, green, gold, or coppery, conspicuously 7–14-veined abaxially, conspicuously 3–8-veined adaxially, lanceolate or ovate to oblanceolate or obovate, plano-convex, (3.7–)4.5–6 × 1.5–2.6 mm, 0.5–0.7(–0.9) mm thick, margin flat, including wing 0.2–0.4(–0.5) mm wide; beak brown to gold or reddish, often white-hyaline at tip, ± cylindric, ± ciliate-serrulate for distal 0.2–0.7 mm, abaxial suture with white margin, or sometimes inconspicuous, distance from beak tip to achene (0.6–)1–2 mm. Achenes lanceolate to ovate or obovate, 1.9–2.4 × 1.2–1.6 mm, 0.5–0.7 mm thick. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Univ. Calif. Publ. Bot. 9: 119 1921 to Univ. Calif. Publ. Bot. 9: 119 (1921), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]