Cyperaceae taxon details
Carex missouriensis P.Rothr. & Reznicek
1676284 (urn:lsid:marinespecies.org:taxname:1676284)
accepted
Species
Carex straminea var. meadii Boott · unaccepted
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): 220 [details]
page(s): 220 [details]
Description Plants densely cespitose, to 200 culms together; rhizomes may appear elongate in old clumps. Culms 45–90 cm; vegetative...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 220 2001 to Novon 11(2): 220. 2001 , information provided...
Description Plants densely cespitose, to 200 culms together; rhizomes may appear elongate in old clumps. Culms 45–90 cm; vegetative culms few, inconspiculous, usually fewer than 12 leaves, not strikingly 3-ranked. Leaves: sheaths glabrous, individually indistinct Y-shaped hyaline band reaching 0–8 mm below the collar, summit U-shaped or truncate, extending 0–2 mm beyond collar, smooth; distal ligules 2–4 mm; blades 3–6 per fertile culm, 2.5–25 cm × 1.8–3.2(–4) mm. Inflorescences open to congested, erect to nodding, pale or golden brown, 2–4.5 cm × 7.5–19 mm; proximal internode 3.5–12 mm; 2d internode 3–10 mm; proximal bracts scalelike or often with bristle tips shorter than or equaling inflorescences. Spikes 3–8, distant, distinct, globose to ovoid or conic, 8–14 × 4.5–9.5 mm, base rounded to acute, apex acute, obtuse, or rounded. Pistillate scales pale yellowish brown or occasionally copper-brown tinged, with narrow yellow-brown midstripe, lanceolate or lance-ovate, 3.7–4.4 mm, reaching base to middle of perignyium beaks, margin whitish to brownish hyaline, apex membranaceous, curled, acuminate or awned to 0.7 mm. Staminate scales acuminate-awned. Anthers (1.8–)2.2–3.6 mm. Perigynia 15–80 on larger spikes, loosely ascending, light green, yellow-brown, or copper-brown, green or brown winged, inconspicuously 0–3(–5)-veined adaxially, 0–8-veined abaxially, 1–2 veins in winged margin, broadly elliptic to ovate, flat or concavo-convex except over achene, (4.2–)4.6–6.7(–7.1 in larger perigynia) × 2.5–4 mm, 0.5–0.7 mm thick, herbaceous, ± opaque, with achene not visible through adaxial face, margin flat, including wing 0.6–1.1 mm wide smooth; beak tip, strongly flattened, 2–2.8 mm, serrulate-margined to apex, abaxial suture pale or copper-brown, distance from beak tip to achene 2.6–4.2 mm. Achenes elliptic to ± orbiculate, 1.6–2.2 × 1.2–1.6 mm, 0.5–0.7 mm thick, apiculum to 0.4–1.1 mm. 2n =50, 52, 54. [details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 220 2001 to Novon 11(2): 220. 2001 , information provided...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 220 2001 to Novon 11(2): 220. 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 missouriensis P.Rothr. & Reznicek. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676284 on 2025-09-12
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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): 220 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 220 [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 F 0045415, geounit United States [details]
From editor or global species database
Description Plants densely cespitose, to 200 culms together; rhizomes may appear elongate in old clumps. Culms 45–90 cm; vegetative culms few, inconspiculous, usually fewer than 12 leaves, not strikingly 3-ranked. Leaves: sheaths glabrous, individually indistinct Y-shaped hyaline band reaching 0–8 mm below the collar, summit U-shaped or truncate, extending 0–2 mm beyond collar, smooth; distal ligules 2–4 mm; blades 3–6 per fertile culm, 2.5–25 cm × 1.8–3.2(–4) mm. Inflorescences open to congested, erect to nodding, pale or golden brown, 2–4.5 cm × 7.5–19 mm; proximal internode 3.5–12 mm; 2d internode 3–10 mm; proximal bracts scalelike or often with bristle tips shorter than or equaling inflorescences. Spikes 3–8, distant, distinct, globose to ovoid or conic, 8–14 × 4.5–9.5 mm, base rounded to acute, apex acute, obtuse, or rounded. Pistillate scales pale yellowish brown or occasionally copper-brown tinged, with narrow yellow-brown midstripe, lanceolate or lance-ovate, 3.7–4.4 mm, reaching base to middle of perignyium beaks, margin whitish to brownish hyaline, apex membranaceous, curled, acuminate or awned to 0.7 mm. Staminate scales acuminate-awned. Anthers (1.8–)2.2–3.6 mm. Perigynia 15–80 on larger spikes, loosely ascending, light green, yellow-brown, or copper-brown, green or brown winged, inconspicuously 0–3(–5)-veined adaxially, 0–8-veined abaxially, 1–2 veins in winged margin, broadly elliptic to ovate, flat or concavo-convex except over achene, (4.2–)4.6–6.7(–7.1 in larger perigynia) × 2.5–4 mm, 0.5–0.7 mm thick, herbaceous, ± opaque, with achene not visible through adaxial face, margin flat, including wing 0.6–1.1 mm wide smooth; beak tip, strongly flattened, 2–2.8 mm, serrulate-margined to apex, abaxial suture pale or copper-brown, distance from beak tip to achene 2.6–4.2 mm. Achenes elliptic to ± orbiculate, 1.6–2.2 × 1.2–1.6 mm, 0.5–0.7 mm thick, apiculum to 0.4–1.1 mm. 2n =50, 52, 54. [details]Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Novon 11: 220 2001 to Novon 11(2): 220. 2001 , information provided by Alan E. on email Oct. 12 2020 More details could be found in The P [details]
To Biodiversity Heritage Library (6 publications)
To European Nucleotide Archive, ENA (Carex missouriensis)
To Field Museum Herbarium (Carex missouriensis P. Rothr. & Reznicek F2228153 isotype 1)
To GenBank (9 nucleotides; 1 proteins)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. meadii Boott)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex straminea var. meadii Boott)
To Royal Botanic Gardens, Kew (Carex missouriensis K001079152 isotype 1)
To US Herbarium (Carex missouriensis US3420782 type 1)
To US Herbarium (Carex straminea meadii US30119 type 1) (from synonym Carex straminea var. meadii Boott)
To European Nucleotide Archive, ENA (Carex missouriensis)
To Field Museum Herbarium (Carex missouriensis P. Rothr. & Reznicek F2228153 isotype 1)
To GenBank (9 nucleotides; 1 proteins)
To International Plant Names Index (IPNI) (from synonym Carex straminea var. meadii Boott)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Carex straminea var. meadii Boott)
To Royal Botanic Gardens, Kew (Carex missouriensis K001079152 isotype 1)
To US Herbarium (Carex missouriensis US3420782 type 1)
To US Herbarium (Carex straminea meadii US30119 type 1) (from synonym Carex straminea var. meadii Boott)
From editor or global species database
