Cyperaceae taxon details
Carex shinnersii P.Rothr. & Reznicek
1677111 (urn:lsid:marinespecies.org:taxname:1677111)
accepted
Species
terrestrial
Rothrock, P. E.; Reznicek, A. A. (2001). The taxonomy of the <i>Carex bicknellii</i> group (Cyperaceae) and new species for Central North America. <em>Novon.</em> 11(2): 205-228., available online at https://doi.org/10.2307/3393060
page(s): 225 [details]
page(s): 225 [details]
Holotype MICH 1192964, geounit Texas
Holotype MICH 1192964, geounit Texas [details]
Description Plants densely cespitose, to 200 culms together; rhizomes appearing elongate in old clumps. Culms 40–110 cm; vegetative...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 225 2001 to Novon 11(2): 225. 2001 , information provided...
Description Plants densely cespitose, to 200 culms together; rhizomes appearing elongate in old clumps. Culms 40–110 cm; vegetative culms inconspicuous with 9–17 leaves mostly clustered near apex of culm. Leaves: sheaths abaxially green or with pale intervenal areas with scattered, horizontal green septa, adaxially hyaline band broad, smooth, summit concave to truncate, equaling to extending 2 mm beyond collar; ligules 1.8–4.8 mm; blades 4–6 per fertile culm, 2.5–35 cm × 1.8–4.2 mm. Inflorescences erect to slightly arching, compact to elongated, pale brown, 2.8–5.9 cm × 6–17 mm; proximal internode 3.5–12(–17) mm; 2d internode 3–9(–13) mm; proximal bracts scalelike, often with bristle tips shorter than inflorescences. Spikes (3–)4–7(–11), distinct, ovoid, 9.5–20.5 × 6–9 mm, base rounded to tapered, apex rounded. Pistillate scales pale brown with narrow yellow-green to brown midstripe prominent to tip, lanceolate, (3.7–)4–5.2 mm, (2.6–)2.9–3.7(–4.2) times as long as wide, reaching base to middle of perigynium beak, shorter than perigynia by (0.4–)0.6–1.4(–1.6) mm, margin hyaline, apex firm and herbaceous, flat or inrolled, with subulate tip or awned. Staminate scales acuminate. Anthers (1.8–)2.2–3.6 mm. Perigynia 15–80 on larger spikes, ascending, yellowish green to brown with paler margins, conspicuously 7–11-veined abaxially, faintly (0–)2–8-veined adaxially, wings with 1–4 veins, ovate, elliptic, or ± orbiculate, plano-convex, (4.5–)4.8–6.1(–6.3) × 2.5–3.8 mm, 0.5–0.7 mm thick, herbaceous, opaque with achene not clearly visible through adaxial face of perigynium, base rounded, margin flat, including wing 0.5–1.3 mm, smooth; beak yellowish green to pale brown, strongly flattened, (1.2–)1.5–2.1(–2.3) mm, serrulate-margined to apex, abaxial suture pale or copper-brown, distance from beak tip to achene (2–)2.3–3.3 mm. Achenes ovate to elliptic, 1.8–2.4 × 1.3–1.7 mm, 0.5–0.7 mm thick, apiculum to 0.4–0.9 mm. 2n = 60.
[details]
[details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 225 2001 to Novon 11(2): 225. 2001 , information provided...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 225 2001 to Novon 11(2): 225. 2001 , information provided by Alan E. on email Oct. 12 2020 More details could be found in The P [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex shinnersii P.Rothr. & Reznicek. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677111 on 2025-09-13
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
Rothrock, P. E.; Reznicek, A. A. (2001). The taxonomy of the <i>Carex bicknellii</i> group (Cyperaceae) and new species for Central North America. <em>Novon.</em> 11(2): 205-228., available online at https://doi.org/10.2307/3393060
page(s): 225 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 225 [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 densely cespitose, to 200 culms together; rhizomes appearing elongate in old clumps. Culms 40–110 cm; vegetative culms inconspicuous with 9–17 leaves mostly clustered near apex of culm. Leaves: sheaths abaxially green or with pale intervenal areas with scattered, horizontal green septa, adaxially hyaline band broad, smooth, summit concave to truncate, equaling to extending 2 mm beyond collar; ligules 1.8–4.8 mm; blades 4–6 per fertile culm, 2.5–35 cm × 1.8–4.2 mm. Inflorescences erect to slightly arching, compact to elongated, pale brown, 2.8–5.9 cm × 6–17 mm; proximal internode 3.5–12(–17) mm; 2d internode 3–9(–13) mm; proximal bracts scalelike, often with bristle tips shorter than inflorescences. Spikes (3–)4–7(–11), distinct, ovoid, 9.5–20.5 × 6–9 mm, base rounded to tapered, apex rounded. Pistillate scales pale brown with narrow yellow-green to brown midstripe prominent to tip, lanceolate, (3.7–)4–5.2 mm, (2.6–)2.9–3.7(–4.2) times as long as wide, reaching base to middle of perigynium beak, shorter than perigynia by (0.4–)0.6–1.4(–1.6) mm, margin hyaline, apex firm and herbaceous, flat or inrolled, with subulate tip or awned. Staminate scales acuminate. Anthers (1.8–)2.2–3.6 mm. Perigynia 15–80 on larger spikes, ascending, yellowish green to brown with paler margins, conspicuously 7–11-veined abaxially, faintly (0–)2–8-veined adaxially, wings with 1–4 veins, ovate, elliptic, or ± orbiculate, plano-convex, (4.5–)4.8–6.1(–6.3) × 2.5–3.8 mm, 0.5–0.7 mm thick, herbaceous, opaque with achene not clearly visible through adaxial face of perigynium, base rounded, margin flat, including wing 0.5–1.3 mm, smooth; beak yellowish green to pale brown, strongly flattened, (1.2–)1.5–2.1(–2.3) mm, serrulate-margined to apex, abaxial suture pale or copper-brown, distance from beak tip to achene (2–)2.3–3.3 mm. Achenes ovate to elliptic, 1.8–2.4 × 1.3–1.7 mm, 0.5–0.7 mm thick, apiculum to 0.4–0.9 mm. 2n = 60.[details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 225 2001 to Novon 11(2): 225. 2001 , information provided by Alan E. on email Oct. 12 2020 More details could be found in The P [details]
To Biodiversity Heritage Library (1 publication)
To European Nucleotide Archive, ENA (Carex shinnersii)
To Field Museum Herbarium (Carex shinnersii P. Rothr. & Reznicek F2228151 isotype 1)
To GenBank (8 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Carex shinnersii K001079158 type 1)
To US Herbarium (Carex shinnersii US3420783 type 1)
To European Nucleotide Archive, ENA (Carex shinnersii)
To Field Museum Herbarium (Carex shinnersii P. Rothr. & Reznicek F2228151 isotype 1)
To GenBank (8 nucleotides; 1 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Carex shinnersii K001079158 type 1)
To US Herbarium (Carex shinnersii US3420783 type 1)
From editor or global species database
Hosted externally
Hosted externally
Hosted externally
