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Aquatic and Wetland Vascular Plants of the Northern Great Plains

Fimbristylis Vahl


Grasslike annuals and perennials; culms tufted or solitary, slender. Leaves mainly basal, narrowly linear, flat to involute, with or without a ligule of short hairs. Inflorescence a terminal umbel or cyme of spikelets, with 1 or 2 spikelets sessile, subtended by an involucre of 2 or 3 short, leaflike bracts; spikelets several to many, ovoid to oblong-lanceolate, many-flowered; scales spirally arranged and imbricate in the spikelets, all floriferous. Flowers perfect; perianth lacking; stamens (1)2-3; styles bifid or trifid, swollen at the base above the attachment to the achene, readily deciduous. Achenes lenticular or trigonous, obovoid, smooth to reticulate.

Reference:  

Kral, R.  1971.  A treatment of Abildgaardia, Bulbostylis and 
     Fimbristylis (Cyperaceae) for North America.  Sida 4:57-227.

Lead Characteristic Go To
1 Achenes trigonous; styles trifid; plants annual. F. autumnalis
1 Achenes lenticular; styles bifid; plants perennial. F. puberula


62. Cyperaceae, the Sedge Family
7. Fimbristylis Vahl
1. Fimbristylis autumnalis (L.) R. & S.
2. Fimbristylis puberula (Michx.) Vahl


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