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Cyperaceae taxon details

Carex ebenea Rydb.

1676877  (urn:lsid:marinespecies.org:taxname:1676877)

accepted
Species
terrestrial
Rydberg, P. A. (1901). Studies on the Rocky Mountains Flora V. <em>Bulletin of the Torrey Botanical Club.</em> 28(5): 266-284., available online at https://www.biodiversitylibrary.org/page/728821#page/323/mode/1up
page(s): 266 [details] 
Description Plants densely cespitose. Culms 18–50 cm. Leaves: sheath adaxially white-hyaline, summits U-shaped to rounded,...  
Description Plants densely cespitose. Culms 18–50 cm. Leaves: sheath adaxially white-hyaline, summits U-shaped to rounded, occasionally prolonged to 4 mm beyond collar; distal ligules 0.5–1.5(–2) mm; blades 3–4(–6) per fertile culm, 11–26 cm × 2.8–4 mm. Inflorescences dense, dark brown, 1.5–3 cm × 14–20 mm; proximal internode 1.5–3 mm; 2d internode 1–3.5 mm; proximal bracts scalelike, usually bristlelike, shorter than inflorescences. Spikes (4–)6–12, aggregated, individually indistinct, ovoid, 9–15 × 4.5–6.5 mm, base and apex acute to rounded. Pistillate scales dark brown, red-brown, or red-gold, sometimes with green to gold midstripe, ovate, 3.6–4.7 mm, shorter than and narrower or as wide as perigynia, margin gold-hyaline, to 0.3 mm wide, apex acuminate or acute. Perigynia appressed to ascending, green, gold, or brown, conspicuously usually 7–9-veined abaxially, conspicuously 0–5-veined adaxially, veins shorter than achene, lanceolate to ovate, plano-convex, to 5.3–7.1 × 1.1–1.5 mm, 0.4–0.5 mm thick, margin flat, including wing 0.15–0.3 mm wide, ciliate-serrulate at least on distal body; beak dark brown, sometimes gold-hyaline at tip, cylindric, unwinged, ± entire for 0.9–1.5 mm, dorsal suture inconspicuous or with conspicuous white margin, distance from beak tip to achene 2.9–4 mm. Achenes ovate to obovate, 1.5–1.9 × 0.8–1.1 mm, 0.4–0.5 mm thick. 2n = 84. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 28: 266 1901 to Bull. Torrey Bot. Club 28: 266...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 28: 266 1901 to Bull. Torrey Bot. Club 28: 266 (1901), 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 ebenea Rydb.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676877 on 2025-09-12
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 Rydberg, P. A. (1901). Studies on the Rocky Mountains Flora V. <em>Bulletin of the Torrey Botanical Club.</em> 28(5): 266-284., available online at https://www.biodiversitylibrary.org/page/728821#page/323/mode/1up
page(s): 266 [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 
   

Syntype NY 00011086, geounit Colorado [details]
From editor or global species database
Description Plants densely cespitose. Culms 18–50 cm. Leaves: sheath adaxially white-hyaline, summits U-shaped to rounded, occasionally prolonged to 4 mm beyond collar; distal ligules 0.5–1.5(–2) mm; blades 3–4(–6) per fertile culm, 11–26 cm × 2.8–4 mm. Inflorescences dense, dark brown, 1.5–3 cm × 14–20 mm; proximal internode 1.5–3 mm; 2d internode 1–3.5 mm; proximal bracts scalelike, usually bristlelike, shorter than inflorescences. Spikes (4–)6–12, aggregated, individually indistinct, ovoid, 9–15 × 4.5–6.5 mm, base and apex acute to rounded. Pistillate scales dark brown, red-brown, or red-gold, sometimes with green to gold midstripe, ovate, 3.6–4.7 mm, shorter than and narrower or as wide as perigynia, margin gold-hyaline, to 0.3 mm wide, apex acuminate or acute. Perigynia appressed to ascending, green, gold, or brown, conspicuously usually 7–9-veined abaxially, conspicuously 0–5-veined adaxially, veins shorter than achene, lanceolate to ovate, plano-convex, to 5.3–7.1 × 1.1–1.5 mm, 0.4–0.5 mm thick, margin flat, including wing 0.15–0.3 mm wide, ciliate-serrulate at least on distal body; beak dark brown, sometimes gold-hyaline at tip, cylindric, unwinged, ± entire for 0.9–1.5 mm, dorsal suture inconspicuous or with conspicuous white margin, distance from beak tip to achene 2.9–4 mm. Achenes ovate to obovate, 1.5–1.9 × 0.8–1.1 mm, 0.4–0.5 mm thick. 2n = 84. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 28: 266 1901 to Bull. Torrey Bot. Club 28: 266 (1901), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]