Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
Agrostis L. -- Bentgrass
Rhizomatous (sometimes stoloniferous) or tufted perennials with soft, flat leaves
and usually open panicles. Spikelets 1-flowered, disarticulating above
the glumes; glumes subequal, acute to acuminate, scabrous on the keel,
1-nerved; floret exceeded by both glumes; lemma lanceolate, obtuse,
more delicate than the glumes, very faintly 3-nerved; palea absent or
rudimentary, or to 2/3 as long as the lemma, scarious.
||Palea absent or rudimentary; plants usually lacking
rhizomes or stolons.
||Palea present, 1/2 to 2/3 as long as the lemma;
plants with rhizomes and/or stolons.
||Panicle open and diffuse, the widely spreading
main branches branched and bearing spikelets only above the middle.
||Panicle narrow and condensed, the strongly ascending
main branches branched and bearing spikelets to near their bases.
63. Poaceae, the Grass Family
2. Agrostis L. -- Bentgrass
- 1. Agrostis exarata Trin. -- Spikebent
- 2. Agrostis hyemalis (Walt.) B.S.P.
- 3. Agrostis stolonifera L. -- Redtop
Return to Family -- Poaceae - The Grass Family
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