Cyperaceae taxon details
Carex oligocarpa Willd.
1676640 (urn:lsid:marinespecies.org:taxname:1676640)
accepted
Species
Carex oligocarpa f. subuniflora (Steud.) Kük. · unaccepted
Carex oligocarpa f. triflora Kük. · unaccepted
Carex oligocarpa f. triflora Peck · unaccepted
Carex oligocarpa var. major Torr. · unaccepted
Carex oligocarpa var. minor Boott · unaccepted
Carex oligocarpa var. sartwelliana Dewey · unaccepted
Carex subuniflora Steud. · unaccepted
Carex vleckii Schwein. · unaccepted
Deweya oligocarpa (Willd.) Raf. · unaccepted
Olotrema oligocarpa (Willd.) Raf. · unaccepted
- Forma Carex oligocarpa f. subuniflora (Steud.) Kük. accepted as Carex oligocarpa Willd.
- Forma Carex oligocarpa f. triflora Kük. accepted as Carex oligocarpa Willd.
- Forma Carex oligocarpa f. triflora Peck accepted as Carex oligocarpa Willd.
- Variety Carex oligocarpa var. calcifugens (Naczi) D.B.Ward accepted as Carex calcifugens Naczi
- Variety Carex oligocarpa var. hitchcockiana (Dewey) Boeckeler accepted as Carex hitchcockiana Dewey
- Variety Carex oligocarpa var. hitchcockiana Kük. accepted as Carex hitchcockiana Dewey
- Variety Carex oligocarpa var. major Torr. accepted as Carex oligocarpa Willd.
- Variety Carex oligocarpa var. minor Boott accepted as Carex oligocarpa Willd.
- Variety Carex oligocarpa var. paeninsulae (Naczi, E.L.Bridges & Orzell) D.B.Ward accepted as Carex paeninsulae Naczi, E.L.Bridges & Orzell
- Variety Carex oligocarpa var. sartwelliana Dewey accepted as Carex oligocarpa Willd.
- Variety Carex oligocarpa var. thornei (Naczi) D.B.Ward accepted as Carex thornei Naczi
- Variety Carex oligocarpa var. vanvleckii (Schwein.) Dewey accepted as Carex digitalis var. digitalis Willd.
terrestrial
(1805). Sp. Pl., ed. 4 [Willdenow] 4(1), available online at https://www.biodiversitylibrary.org/page/670960#page/1/mode/1up
page(s): 279 [details]
page(s): 279 [details]
Description Plants densely cespitose; rhizome internodes 0.2–6(–8) mm, 1.6–2.2 mm thick. Culms strongly purple-red to 3.2–8.8 cm...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Willd. to Schkuhr ex Willd., information provided by Alan E....
Description Plants densely cespitose; rhizome internodes 0.2–6(–8) mm, 1.6–2.2 mm thick. Culms strongly purple-red to 3.2–8.8 cm high at base, 10–55 cm; longest vegetative shoots 0.88–1.4 times as long as longest culms. Leaves: sheaths glabrous; blades green, widest blades (1.8–) 2.4–4(–4.6) mm wide, smooth abaxially. Inflorescences 0.46–0.94(–0.99) of culm height; peduncles of lateral spikes barely scaberulous or smooth; peduncles of terminal spikes 2.6–113 mm, barely to much exceeding lateral spikes; proximal bract with sheath tight, abaxially glabrous, sheath front convex, elongated (0.8–)1.1–4.0 mm beyond apex; ligules 0.8–4.1(–6.4) mm; blade uniformly green; distal bract usually much exceeding terminal spike. Spikes 3–5, widely separate or distal 2–3 spikes overlapping; lateral spikes pistillate with 2–8(–10) perigynia, (4–)9–19 × 3.8–7.5(–9.2) mm, ratio of spike length (in mm) to flower number = 1.5–3.8; terminal spikes (7–)14–32(–45) × 1.1–2.3(–3) mm. Pistillate scales 2.8–6.8 × 1.5–2.4 mm, margins whitish, entire, apex with awn 0.7–4.1 mm. Staminate scales 4–5 × 1.3–1.6 mm. Anthers 2.8–3.5 mm. Perigynia distichously imbricate, 51–67-veined, unwrinkled, narrowly obovoid-ellipsoid, obtusely triangular in cross section, 3.7–4.7 × 1.6–1.9(–2) mm, (1.8–) 2.2–2.6 times as long as wide, dull, base gradually tapered, abruptly contracted; beak straight, 0.4–1.2 mm. Achenes obovoid, 2.8–3.4 × 1.5–1.8 mm, tightly enveloped by perigynia; stipe straight, 0.3–0.6 mm; beak straight, (0.05–)0.2–0.4(–0.5) mm. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Willd. to Schkuhr ex Willd., information provided by Alan E....
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Willd. to Schkuhr ex Willd., information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex oligocarpa Willd.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676640 on 2025-09-14
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Nomenclature
original description
(1805). Sp. Pl., ed. 4 [Willdenow] 4(1), available online at https://www.biodiversitylibrary.org/page/670960#page/1/mode/1up
page(s): 279 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 279 [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 P 00317273, geounit Greenland [details]
Syntype (of Carex oligocarpa var. sartwelliana Dewey) P 00312977, geounit New York [details]
From editor or global species database
Description Plants densely cespitose; rhizome internodes 0.2–6(–8) mm, 1.6–2.2 mm thick. Culms strongly purple-red to 3.2–8.8 cm high at base, 10–55 cm; longest vegetative shoots 0.88–1.4 times as long as longest culms. Leaves: sheaths glabrous; blades green, widest blades (1.8–) 2.4–4(–4.6) mm wide, smooth abaxially. Inflorescences 0.46–0.94(–0.99) of culm height; peduncles of lateral spikes barely scaberulous or smooth; peduncles of terminal spikes 2.6–113 mm, barely to much exceeding lateral spikes; proximal bract with sheath tight, abaxially glabrous, sheath front convex, elongated (0.8–)1.1–4.0 mm beyond apex; ligules 0.8–4.1(–6.4) mm; blade uniformly green; distal bract usually much exceeding terminal spike. Spikes 3–5, widely separate or distal 2–3 spikes overlapping; lateral spikes pistillate with 2–8(–10) perigynia, (4–)9–19 × 3.8–7.5(–9.2) mm, ratio of spike length (in mm) to flower number = 1.5–3.8; terminal spikes (7–)14–32(–45) × 1.1–2.3(–3) mm. Pistillate scales 2.8–6.8 × 1.5–2.4 mm, margins whitish, entire, apex with awn 0.7–4.1 mm. Staminate scales 4–5 × 1.3–1.6 mm. Anthers 2.8–3.5 mm. Perigynia distichously imbricate, 51–67-veined, unwrinkled, narrowly obovoid-ellipsoid, obtusely triangular in cross section, 3.7–4.7 × 1.6–1.9(–2) mm, (1.8–) 2.2–2.6 times as long as wide, dull, base gradually tapered, abruptly contracted; beak straight, 0.4–1.2 mm. Achenes obovoid, 2.8–3.4 × 1.5–1.8 mm, tightly enveloped by perigynia; stipe straight, 0.3–0.6 mm; beak straight, (0.05–)0.2–0.4(–0.5) mm. [details]Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Willd. to Schkuhr ex Willd., information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List [details]
To Biodiversity Heritage Library (1 publication) (from synonym Olotrema oligocarpa (Willd.) Raf.)
To Biodiversity Heritage Library (2 publications) (from synonym Deweya oligocarpa (Willd.) Raf.)
To Biodiversity Heritage Library (215 publications)
To Biodiversity Heritage Library (7 publications) (from synonym Carex subuniflora Steud.)
To European Nucleotide Archive, ENA (Carex oligocarpa)
To International Plant Names Index (IPNI) (from synonym Deweya oligocarpa (Willd.) Raf.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex vleckii Schwein.)
To International Plant Names Index (IPNI) (from synonym Olotrema oligocarpa (Willd.) Raf.)
To International Plant Names Index (IPNI) (from synonym Carex subuniflora Steud.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. major Torr.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. sartwelliana Dewey)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. minor Boott)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa f. triflora Kük.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa f. subuniflora (Steud.) Kük.)
To Plants of the World Online (from synonym Carex oligocarpa f. triflora Peck)
To Plants of the World Online (from synonym Carex oligocarpa f. subuniflora (Steud.) Kük.)
To Plants of the World Online (from synonym Carex oligocarpa var. minor Boott)
To Plants of the World Online (from synonym Carex oligocarpa var. sartwelliana Dewey)
To Plants of the World Online (from synonym Carex subuniflora Steud.)
To Plants of the World Online (from synonym Carex oligocarpa var. major Torr.)
To Plants of the World Online (from synonym Carex vleckii Schwein.)
To Plants of the World Online
To Plants of the World Online (from synonym Deweya oligocarpa (Willd.) Raf.)
To Plants of the World Online (from synonym Olotrema oligocarpa (Willd.) Raf.)
To The Plant List (from synonym Carex oligocarpa f. triflora Kük.)
To Biodiversity Heritage Library (2 publications) (from synonym Deweya oligocarpa (Willd.) Raf.)
To Biodiversity Heritage Library (215 publications)
To Biodiversity Heritage Library (7 publications) (from synonym Carex subuniflora Steud.)
To European Nucleotide Archive, ENA (Carex oligocarpa)
To International Plant Names Index (IPNI) (from synonym Deweya oligocarpa (Willd.) Raf.)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex vleckii Schwein.)
To International Plant Names Index (IPNI) (from synonym Olotrema oligocarpa (Willd.) Raf.)
To International Plant Names Index (IPNI) (from synonym Carex subuniflora Steud.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. major Torr.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. sartwelliana Dewey)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa var. minor Boott)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa f. triflora Kük.)
To International Plant Names Index (IPNI) (from synonym Carex oligocarpa f. subuniflora (Steud.) Kük.)
To Plants of the World Online (from synonym Carex oligocarpa f. triflora Peck)
To Plants of the World Online (from synonym Carex oligocarpa f. subuniflora (Steud.) Kük.)
To Plants of the World Online (from synonym Carex oligocarpa var. minor Boott)
To Plants of the World Online (from synonym Carex oligocarpa var. sartwelliana Dewey)
To Plants of the World Online (from synonym Carex subuniflora Steud.)
To Plants of the World Online (from synonym Carex oligocarpa var. major Torr.)
To Plants of the World Online (from synonym Carex vleckii Schwein.)
To Plants of the World Online
To Plants of the World Online (from synonym Deweya oligocarpa (Willd.) Raf.)
To Plants of the World Online (from synonym Olotrema oligocarpa (Willd.) Raf.)
To The Plant List (from synonym Carex oligocarpa f. triflora Kük.)
