Cyperaceae taxon details
Carex bicknellii Britton & A.Br.
1678138 (urn:lsid:marinespecies.org:taxname:1678138)
accepted
Species
Carex brevior var. crawei (Boott) B.Boivin · unaccepted
Carex straminea var. crawei Boott · unaccepted
terrestrial
Britton, N. L. & Brown, A. (1986). An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle. 1., available online at https://www.biodiversitylibrary.org/page/11287156#page/7/mode/1up
page(s): 360 [details]
page(s): 360 [details]
Description Plants cespitose with fewer than 25 culms per clump; rhizomes appearing elongate only in old clumps. Culms (35–)40–110...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton & A.Br. to Britton & A.Brown, information provided...
Description Plants cespitose with fewer than 25 culms per clump; rhizomes appearing elongate only in old clumps. Culms (35–)40–110 cm; vegetative culms few, inconspicuous, with 6–8 leaves, not strikingly 3-ranked. Leaves: sheaths adaxially white-hyaline, summits concave or truncate, prolonged beyond collar to 2.5 mm, papillose at least near apex; distal ligules 1–5 mm; blades 3–4 per fertile culm, 2.5–25 cm × 2–5 mm, usually adaxially papillose. Inflorescences open, pale brown, 0.24–0.62 cm × 8–15 mm; proximal internode 5–17 mm; 2d internode 3–10 mm; proximal bracts scalelike, with bristle tips shorter than inflorescences. Spikes 3–6(–8), distant, distinct, ovoid to clavate, 7–21 × 5.5–12 mm, base rounded to long tapered, apex rounded. Pistillate scales reddish brown with green midstripe, lance-ovate to ovate, 3.1–5.4 mm, 1.9–3.2 times as long as wide, (1–)1.4–2.3 mm shorter than perigynia, narrower than perignyia, apex obtuse to acute. Anthers (2.4–)2.8–4.2 mm. Staminate scales obtuse. Perigynia 15–80 in larger spikes, ascending or ascending-spreading, green to pale whitish green with reddish brown margin, conspicuously 8–12-veined abaxially, 4–8-veined adaxially, broadly elliptic to nearly orbiculate, (4.5–)5.1–6.7(–7.1) × (2.4–)2.8–4.2 mm, 0.5–0.7 mm thick, membranaceous with brown achene visible through hyaline adaxial face, margin flat, including wing 0.8–1.2 mm wide, often erose, scalloped, or with an irregular tooth, smooth; beak pale brown at tip, flat, ciliate-serrulate, abaxial suture inconspicuous, distance from beak tip to achene 2.4–3.7 mm. Achenes elliptic to oblong, 1.6–2.2 × 1.1–1.6 mm, 0.5 mm thick. 2n = 76, 78. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton & A.Br. to Britton & A.Brown, information provided...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton & A.Br. to Britton & A.Brown, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Pl [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex bicknellii Britton & A.Br.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678138 on 2025-09-12
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2024-12-10 11:47:54Z
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Nomenclature
original description
Britton, N. L. & Brown, A. (1986). An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle. 1., available online at https://www.biodiversitylibrary.org/page/11287156#page/7/mode/1up
page(s): 360 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 360 [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
From editor or global species database
Description Plants cespitose with fewer than 25 culms per clump; rhizomes appearing elongate only in old clumps. Culms (35–)40–110 cm; vegetative culms few, inconspicuous, with 6–8 leaves, not strikingly 3-ranked. Leaves: sheaths adaxially white-hyaline, summits concave or truncate, prolonged beyond collar to 2.5 mm, papillose at least near apex; distal ligules 1–5 mm; blades 3–4 per fertile culm, 2.5–25 cm × 2–5 mm, usually adaxially papillose. Inflorescences open, pale brown, 0.24–0.62 cm × 8–15 mm; proximal internode 5–17 mm; 2d internode 3–10 mm; proximal bracts scalelike, with bristle tips shorter than inflorescences. Spikes 3–6(–8), distant, distinct, ovoid to clavate, 7–21 × 5.5–12 mm, base rounded to long tapered, apex rounded. Pistillate scales reddish brown with green midstripe, lance-ovate to ovate, 3.1–5.4 mm, 1.9–3.2 times as long as wide, (1–)1.4–2.3 mm shorter than perigynia, narrower than perignyia, apex obtuse to acute. Anthers (2.4–)2.8–4.2 mm. Staminate scales obtuse. Perigynia 15–80 in larger spikes, ascending or ascending-spreading, green to pale whitish green with reddish brown margin, conspicuously 8–12-veined abaxially, 4–8-veined adaxially, broadly elliptic to nearly orbiculate, (4.5–)5.1–6.7(–7.1) × (2.4–)2.8–4.2 mm, 0.5–0.7 mm thick, membranaceous with brown achene visible through hyaline adaxial face, margin flat, including wing 0.8–1.2 mm wide, often erose, scalloped, or with an irregular tooth, smooth; beak pale brown at tip, flat, ciliate-serrulate, abaxial suture inconspicuous, distance from beak tip to achene 2.4–3.7 mm. Achenes elliptic to oblong, 1.6–2.2 × 1.1–1.6 mm, 0.5 mm thick. 2n = 76, 78. [details]Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from Britton & A.Br. to Britton & A.Brown, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Pl [details]
To Biodiversity Heritage Library (52 publications)
To European Nucleotide Archive, ENA (Carex bicknellii)
To International Plant Names Index (IPNI) (from synonym Carex brevior var. crawei (Boott) B.Boivin)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. crawei Boott)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex straminea var. crawei Boott)
To Plants of the World Online (from synonym Carex brevior var. crawei (Boott) B.Boivin)
To European Nucleotide Archive, ENA (Carex bicknellii)
To International Plant Names Index (IPNI) (from synonym Carex brevior var. crawei (Boott) B.Boivin)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. crawei Boott)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex straminea var. crawei Boott)
To Plants of the World Online (from synonym Carex brevior var. crawei (Boott) B.Boivin)
