Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
Dwarf, tufted, fibrous-rooted annuals 3-15 cm tall; culms and leaves
filiform; leaves 2 per culm, basal, shorter than the culms; involucral
bracts 2 or 3, foliaceous, the principal one rather erect, causing the inflorescence
to appear lateral. Inflorescence of 1-3 sessile, ovoid spikelets, these
compact, containing numerous minute, spirally arranged scales; perianth
consisting of a single minute inner scale opposite the subtending outer scale,
this inner scale often absent; bristles none; stamen solitary;
styles bifid. Achenes minute, obovate and compressed or cylindrical,
black or brown, minutely apiculate.
Friedland, S. 1941. The American species of Hemicarpha. Amer. J. Bot.
||Inner scale equaling or exceeding the achene and
often cupped around it; mature achenes obovate, compressed, black.
||Inner scale much shorter than the achene or absent;
mature achenes cylindrical, brown.
62. Cyperaceae, the Sedge Family
9. Hemicarpha Ness
- 1. Hemicarpha drummondii Nees
- 2. Hemicarpha micrantha (Vahl) Britt.
Return to Family -- Cyperaceae - The Sedge Family
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