Cyperaceae taxon details
Carex stenoptila F.J.Herm.
1676064 (urn:lsid:marinespecies.org:taxname:1676064)
accepted
Species
terrestrial
Hermann, F. J. (1945). A new Carex from Colorado. <em>Leaflets of western botany.</em> 4: 194-196., available online at https://www.biodiversitylibrary.org/page/12876667#page/236/mode/1up
page(s): 192 [details]
page(s): 192 [details]
Description Plants densely cespitose. Culms with angles smooth proximally, 17–70 cm. Leaves: sheaths adaxially white-hyaline, often...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 4: 194 1945 to Leafl. W. Bot. 4: 194 (1945),...
Description Plants densely cespitose. Culms with angles smooth proximally, 17–70 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summit usually U-shaped, sometimes prolonged to 1.5 mm beyond collar; distal ligules 0.5–1.5(–3) mm; blades (2–)3–4 per fertile culm, 8–20 cm × 2.2–3.8 mm. Inflorescences dense, dark or chestnut brown or brown and green (gold), 1.2–2(–2.5) cm × 8–15 mm; proximal internode 1–3(–4) mm; 2d internode 0.5–3 mm; proximal bracts usually bristlelike, shorter than inflorescences. Spikes 5–9(–12), densely aggregated, individually indistinct, ovoid or broadly ovoid, 7.5–11 × 3.5–6.5 mm, base rounded to attenuate, apex truncate to tapered. Pistillate scales gold to brown, with pale to gold midstripe, lanceolate to ovate, 3.1–3.8 mm, shorter than and narrower than or as wide as perigynia, margin usually not white, apex obtuse to long-acute. Perigynia appressed-ascending to ascending, green to straw colored, conspicuously 6–8-veined abaxially, conspicuously 3–4(–6)-veined adaxially, at least 3 veins longer than achene, narrowly lanceolate to lanceolate, biconvex, 4–5.1 × 1–1.3(–1.5) mm, (0.4–)0.5–0.55 mm thick, margin flat, including wing 0.1–0.25 mm wide, ciliate-serrulate at least on distal body, pithlike tissue usually present in proximal perigynium walls; beak usually dark brown at tip, cylindric, unwinged, ± entire for 0.5–0.9 mm, abaxial suture inconspicuous or with white margin, distance from beak tip to achene 2.2–3.1 mm. Achenes narrowly elliptic to oblong, (1.1–)1.4–1.8 × 0.6–0.9 mm, 0.3–0.5 mm thick. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 4: 194 1945 to Leafl. W. Bot. 4: 194 (1945),...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 4: 194 1945 to Leafl. W. Bot. 4: 194 (1945), 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 stenoptila F.J.Herm.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676064 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
Hermann, F. J. (1945). A new Carex from Colorado. <em>Leaflets of western botany.</em> 4: 194-196., available online at https://www.biodiversitylibrary.org/page/12876667#page/236/mode/1up
page(s): 192 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 192 [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
Isotype 0030023, geounit Colorado [details]
From editor or global species database
Description Plants densely cespitose. Culms with angles smooth proximally, 17–70 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summit usually U-shaped, sometimes prolonged to 1.5 mm beyond collar; distal ligules 0.5–1.5(–3) mm; blades (2–)3–4 per fertile culm, 8–20 cm × 2.2–3.8 mm. Inflorescences dense, dark or chestnut brown or brown and green (gold), 1.2–2(–2.5) cm × 8–15 mm; proximal internode 1–3(–4) mm; 2d internode 0.5–3 mm; proximal bracts usually bristlelike, shorter than inflorescences. Spikes 5–9(–12), densely aggregated, individually indistinct, ovoid or broadly ovoid, 7.5–11 × 3.5–6.5 mm, base rounded to attenuate, apex truncate to tapered. Pistillate scales gold to brown, with pale to gold midstripe, lanceolate to ovate, 3.1–3.8 mm, shorter than and narrower than or as wide as perigynia, margin usually not white, apex obtuse to long-acute. Perigynia appressed-ascending to ascending, green to straw colored, conspicuously 6–8-veined abaxially, conspicuously 3–4(–6)-veined adaxially, at least 3 veins longer than achene, narrowly lanceolate to lanceolate, biconvex, 4–5.1 × 1–1.3(–1.5) mm, (0.4–)0.5–0.55 mm thick, margin flat, including wing 0.1–0.25 mm wide, ciliate-serrulate at least on distal body, pithlike tissue usually present in proximal perigynium walls; beak usually dark brown at tip, cylindric, unwinged, ± entire for 0.5–0.9 mm, abaxial suture inconspicuous or with white margin, distance from beak tip to achene 2.2–3.1 mm. Achenes narrowly elliptic to oblong, (1.1–)1.4–1.8 × 0.6–0.9 mm, 0.3–0.5 mm thick. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Leafl. W. Bot. 4: 194 1945 to Leafl. W. Bot. 4: 194 (1945), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
