Cyperaceae taxon details
Carex straminiformis L.H.Bailey
1676078 (urn:lsid:marinespecies.org:taxname:1676078)
accepted
Species
Carex straminea var. congesta Olney · unaccepted
Carex straminea var. congesta Boott ex A.Gray · unaccepted
terrestrial
Bailey, L. H. (1889). Notes on Carex. 11. Studies of the types of the various species of the genus Carex. Memoirs of the Torrey Botanical Club, 1: 1-85., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 24 [details]
page(s): 24 [details]
Description Plants densely cespitose. Culms 20–50 cm. Leaves: sheaths adaxially white-hyaline, often cross-corrugated, summits...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 24 1889 to Mem. Torrey Bot. Club 1: 24...
Description Plants densely cespitose. Culms 20–50 cm. Leaves: sheaths adaxially white-hyaline, often cross-corrugated, summits U-shaped or rounded, sometimes prolonged to 2.5 mm beyond collar; distal ligules 1–2.5(–3.5) mm; blades 2–4(–7) per fertile culm, 8–25 cm × (2.5–)3–4 mm. Inflorescences dense, gold or brown, 1.3–3 cm × 12–20 mm; proximal internode 0.5–3.9(–5) mm; 2d internode 1–3(–4) mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 3–8, usually distinct, broadly ovoid, 9–12 × 6–9 mm, base rounded to attenuate, apex rounded. Pistillate scales white, gold, red-brown, or coppery, with pale to green midstripe, lanceolate to ovate, 3.2–4.8 mm, shorter and narrower than perigynia, margin white, 0–0.15(–0.3) mm wide, apex acute to acuminate. Perigynia ascending to spreading, green, straw colored, or occasionally white, 10–20-veined abaxially, conspicuously 0–12-veined adaxially, thin, broadly ovate, flat except over achene, 4–5.8 × 1.8–3.4 mm, 0.3–0.5(–0.6) mm thick, 1.7–2.3 times as long as wide, margin flat, including wing 0.4–1 mm wide, edge minutely crinkled and ciliate-serrulate at least distally; beak spreading, gold, red-brown to dark brown, sometimes white-hyaline at tip, flat, ± ciliate-serrulate, sometimes cylindric, unwinged, ± entire for 0.5–0.7 mm, abaxial suture usually inconspicuous, distance from beak tip to achene 2.2–3 mm. Achenes elliptic to broadly obovate, (1.4–)1.7–2.4 × 1–1.6 mm, 0.3–0.5 mm thick. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 24 1889 to Mem. Torrey Bot. Club 1: 24...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 24 1889 to Mem. Torrey Bot. Club 1: 24 (1889), 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 straminiformis L.H.Bailey. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676078 on 2025-09-11
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Bailey, L. H. (1889). Notes on Carex. 11. Studies of the types of the various species of the genus Carex. Memoirs of the Torrey Botanical Club, 1: 1-85., available online at https://www.biodiversitylibrary.org/page/31679539#page/7/mode/1up
page(s): 24 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 24 [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 MICH 1210212, geounit California [details]
From editor or global species database
Description Plants densely cespitose. Culms 20–50 cm. Leaves: sheaths adaxially white-hyaline, often cross-corrugated, summits U-shaped or rounded, sometimes prolonged to 2.5 mm beyond collar; distal ligules 1–2.5(–3.5) mm; blades 2–4(–7) per fertile culm, 8–25 cm × (2.5–)3–4 mm. Inflorescences dense, gold or brown, 1.3–3 cm × 12–20 mm; proximal internode 0.5–3.9(–5) mm; 2d internode 1–3(–4) mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 3–8, usually distinct, broadly ovoid, 9–12 × 6–9 mm, base rounded to attenuate, apex rounded. Pistillate scales white, gold, red-brown, or coppery, with pale to green midstripe, lanceolate to ovate, 3.2–4.8 mm, shorter and narrower than perigynia, margin white, 0–0.15(–0.3) mm wide, apex acute to acuminate. Perigynia ascending to spreading, green, straw colored, or occasionally white, 10–20-veined abaxially, conspicuously 0–12-veined adaxially, thin, broadly ovate, flat except over achene, 4–5.8 × 1.8–3.4 mm, 0.3–0.5(–0.6) mm thick, 1.7–2.3 times as long as wide, margin flat, including wing 0.4–1 mm wide, edge minutely crinkled and ciliate-serrulate at least distally; beak spreading, gold, red-brown to dark brown, sometimes white-hyaline at tip, flat, ± ciliate-serrulate, sometimes cylindric, unwinged, ± entire for 0.5–0.7 mm, abaxial suture usually inconspicuous, distance from beak tip to achene 2.2–3 mm. Achenes elliptic to broadly obovate, (1.4–)1.7–2.4 × 1–1.6 mm, 0.3–0.5 mm thick. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. Torrey Bot. Club 1: 24 1889 to Mem. Torrey Bot. Club 1: 24 (1889), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication) (from synonym Carex straminea var. congesta Olney)
To Biodiversity Heritage Library (1 publication) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To Biodiversity Heritage Library (47 publications)
To European Nucleotide Archive, ENA (Carex straminiformis)
To GenBank (17 nucleotides; 9 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To New York Botanical Garden Steere Herbarium (Carex_straminea_congesta_NY11348_type_1) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To New York Botanical Garden Steere Herbarium (Carex_straminiformis_NY11349_type_1)
To Plants of the World Online (from synonym Carex straminea var. congesta Olney)
To Plants of the World Online
To The Plant List (from synonym Carex straminea var. congesta Boott ex A.Gray)
To Biodiversity Heritage Library (1 publication) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To Biodiversity Heritage Library (47 publications)
To European Nucleotide Archive, ENA (Carex straminiformis)
To GenBank (17 nucleotides; 9 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To New York Botanical Garden Steere Herbarium (Carex_straminea_congesta_NY11348_type_1) (from synonym Carex straminea var. congesta Boott ex A.Gray)
To New York Botanical Garden Steere Herbarium (Carex_straminiformis_NY11349_type_1)
To Plants of the World Online (from synonym Carex straminea var. congesta Olney)
To Plants of the World Online
To The Plant List (from synonym Carex straminea var. congesta Boott ex A.Gray)
From editor or global species database
Hosted externally, from synonym
Hosted externally
