Cyperaceae taxon details
Carex abrupta Mack.
1677129 (urn:lsid:marinespecies.org:taxname:1677129)
accepted
Species
terrestrial
Mackenzie, K. K. (1916). Notes on Carex XI. <em>Bulletin of the Torrey Botanical Club.</em> 43: 601-620., available online at https://www.biodiversitylibrary.org/page/12619421#page/622/mode/1up
page(s): 618 [details]
page(s): 618 [details]
Holotype NY 00025081, geounit California
Holotype NY 00025081, geounit California [details]
Description Plants densely cespitose. Culms 18–66 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summits...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 43: 618 1916 publ. 1917 to Bull. Torrey Bot....
Description Plants densely cespitose. Culms 18–66 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summits U-shaped or rounded, sometimes prolonged beyond collar; distal ligules 1–3(–4.5) mm; blades 3–6 per fertile culm, 10–30(–45) cm × 1.5–3.7(–4.9) mm. Inflorescences dense or open, brown and green, 1.2–2.2 cm × (6–)9–18 mm; proximal internode 1–3 mm; 2d internode 1–2 mm, these 2 internodes collectively less than 1/3 as long as inflorescences; proximal bracts bristlelike, shorter than inflorescences. Spikes 4–9, distinct or densely aggregated and individually indistinct, usually ovoid to broadly ovoid, 4.4–10.8 × 2.7–8.4 mm, base and apex acute to rounded. Pistillate scales red-brown or chestnut to coppery, with green, gold, or light brown midstripe, usually ovate, 2.4–3.9 mm, shorter than perigynia, width less than or equal to perigynia, margin white, 0–0.05 mm wide, apex obtuse to acuminate. Perigynia appressed-ascending to ascending-spreading, red-brown, coppery, or chestnut, conspicuously (5–)7–10-veined abaxially, conspicuously 3–8-veined adaxially, veins reaching top of achene, elliptic to lance-ovate, plano-convex to biconvex or, sometimes, flat around achene, (2.9–)3.6–5.4 × 1–2.1 mm, 0.4–0.5(–0.6) mm thick, margin flat, including wing usually 0.2–0.3 mm wide, often incurved adaxially, perigynia then boat-shaped, ciliate-serrulate on distal body; beak coppery or dark brown at tip, occasionally narrowly flattened, cylindric, unwinged, usually less than 1 mm, ± entire for 0.5–0.8 mm, abaxial suture usually with conspicuous white margin, distance from beak tip to achene (1.6–)2–2.3 mm. Achenes narrowly compressed elliptic to ovate-quadrate, 1.2–1.8 × 0.7–1.1 mm, (0.3–)0.4–0.5 mm thick. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 43: 618 1916 publ. 1917 to Bull. Torrey Bot....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 43: 618 1916 publ. 1917 to Bull. Torrey Bot. Club 43: 618 (1916 publ. 1917), 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 abrupta Mack.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677129 on 2025-09-14
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2024-12-10 11:47:54Z
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Nomenclature
original description
Mackenzie, K. K. (1916). Notes on Carex XI. <em>Bulletin of the Torrey Botanical Club.</em> 43: 601-620., available online at https://www.biodiversitylibrary.org/page/12619421#page/622/mode/1up
page(s): 618 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 618 [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 NY 00025081, geounit California [details]
From editor or global species database
Description Plants densely cespitose. Culms 18–66 cm. Leaves: sheaths adaxially white-hyaline, often tinged brown distally, summits U-shaped or rounded, sometimes prolonged beyond collar; distal ligules 1–3(–4.5) mm; blades 3–6 per fertile culm, 10–30(–45) cm × 1.5–3.7(–4.9) mm. Inflorescences dense or open, brown and green, 1.2–2.2 cm × (6–)9–18 mm; proximal internode 1–3 mm; 2d internode 1–2 mm, these 2 internodes collectively less than 1/3 as long as inflorescences; proximal bracts bristlelike, shorter than inflorescences. Spikes 4–9, distinct or densely aggregated and individually indistinct, usually ovoid to broadly ovoid, 4.4–10.8 × 2.7–8.4 mm, base and apex acute to rounded. Pistillate scales red-brown or chestnut to coppery, with green, gold, or light brown midstripe, usually ovate, 2.4–3.9 mm, shorter than perigynia, width less than or equal to perigynia, margin white, 0–0.05 mm wide, apex obtuse to acuminate. Perigynia appressed-ascending to ascending-spreading, red-brown, coppery, or chestnut, conspicuously (5–)7–10-veined abaxially, conspicuously 3–8-veined adaxially, veins reaching top of achene, elliptic to lance-ovate, plano-convex to biconvex or, sometimes, flat around achene, (2.9–)3.6–5.4 × 1–2.1 mm, 0.4–0.5(–0.6) mm thick, margin flat, including wing usually 0.2–0.3 mm wide, often incurved adaxially, perigynia then boat-shaped, ciliate-serrulate on distal body; beak coppery or dark brown at tip, occasionally narrowly flattened, cylindric, unwinged, usually less than 1 mm, ± entire for 0.5–0.8 mm, abaxial suture usually with conspicuous white margin, distance from beak tip to achene (1.6–)2–2.3 mm. Achenes narrowly compressed elliptic to ovate-quadrate, 1.2–1.8 × 0.7–1.1 mm, (0.3–)0.4–0.5 mm thick. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 43: 618 1916 publ. 1917 to Bull. Torrey Bot. Club 43: 618 (1916 publ. 1917), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (25 publications)
To European Nucleotide Archive, ENA (Carex abrupta)
To GenBank (7 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Carex_abrupta_NY25081_holotype_1)
To Plants of the World Online
To European Nucleotide Archive, ENA (Carex abrupta)
To GenBank (7 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To New York Botanical Garden Steere Herbarium (Carex_abrupta_NY25081_holotype_1)
To Plants of the World Online
From editor or global species database
Hosted externally
