Difference between revisions of "Carex laeviconica"
Amer. J. Sci. Arts, ser. 2, 24: 47. 1857.
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|genus=Carex | |genus=Carex | ||
|section=Carex sect. Carex | |section=Carex sect. Carex |
Revision as of 22:39, 27 May 2020
Culms trigonous in cross section, (25–)30–110 cm; vegetative culms hard, solid with parenchyma, taller than fertile culms. Leaves: basal sheaths reddish purple, inner bands fibrillose with age; sheaths with apex of inner band pale to dark brown, translucent between veins, strongly veined, becoming ladder-fibrillose, glabrous, veins scabrous; ligules 2–12(–17) mm; blades 3–6 mm wide, glabrous, not papillose abaxially. Inflorescences (9–)15–65 cm; spikes erect or ascending; proximal 2–4 spikes pistillate; terminal 2–5 spikes staminate. Pistillate scales lanceolate to narrowly ovate, apex acute to acuminate, scabrous-awned, otherwise glabrous. Staminate scales lanceolate to narrowly ovate, apex obtuse to acuminate, occasionally with scabrous awn, glabrous. Perigynia 12–26-veined, (4.4–)4.8–8.4 × 1.8–3.3 mm, glabrous or scabrous on veins; beak straight to slightly spreading, 1.7–3.8 mm, glabrous or sparsely scabrous-pubescent, teeth (0.8–)1.1–2.3 mm.
Phenology: Fruiting May–Jul.
Habitat: Openings in bottomland and lowland forests, edges of marshes, lakes, and ponds, wet meadows, wet thickets, mesic to wet prairies and savannas
Elevation: 140–600 m
Distribution
![V23 930-distribution-map.jpg](/w/images/8/87/V23_930-distribution-map.jpg)
Man., Ont., Sask., Ill., Iowa, Kans., Minn., Mo., Mont., Nebr., N.Dak., S.Dak., Wis.
Discussion
Carex laeviconica is characteristic of wetlands in the northern Great Plains and western portions of the tallgrass prairie region.
Carex laeviconica hybridizes with C. trichocarpa.
Selected References
None.