Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
Muhlenbergia Schreb. -- Muhly
Solitary or tufted perennials, many producing creeping, scaly rhizomes; culms
erect or decumbent at the base, often branching from the nodes; leaf blades
rather short relative to width, scabrous; sheaths often not overlapping,
the internodes exposed; ligules membranous. Inflorescence usually
a narrow, contracted, spikelike panicle (open and diffuse in M. asperifolia),
terminal, sometimes axillary panicles also produced. Spikelets 1-flowered,
disarticulating above the glumes, the glumes remaining after the florets have
fallen; glumes unequal to subequal, keeled or rounded on the back, acute
to acuminate or awned from the tip, 1-nerved; floret equal to or exceeding
one or both glumes (excluding awns, if present); lemma ovate-lanceolate
or narrowly lanceolate, acute to acuminate, rarely awned, strongly 3-nerved,
pilose at the base in some spp.; palea nearly as long as the lemma, 2-nerved.
Pohl, R. W. 1969. Muhlenbergia subgenus Muhlenbergia (Gramineae)
in North America. Amer. Midl. Naturalist 82:512-542.
||Panicle open and diffuse, about as broad as long,
the filiform branches widely spreading.
||Panicle narrow and contracted, the branches short,
ascending to appressed.
||Leaf blades usually involute, 0.2-1 mm wide; panicles
few-flowered, not glomerulate.
||Leaf blades flat, 2-6(8) mm wide; panicle usually
densely flowered and glomerulate.
||Glumes awned, much surpassing the floret; anthers
0.5-1.5 mm long.
||Glumes acuminate or short-awned, usually not to
shortly surpassing the floret; anthers 0.3-0.5 mm long.
||Internodes of the culm mostly smooth and shiny;
main culms usually branched above; anthers 0.5-0.8 mm long; ligules
0.6-1.5 mm long.
||Internodes of the culm puberulent and dull; main
culms unbranched or branched from the base; anthers 0.8-1.5 mm long;
ligules 0.2-0.6 mm long.
63. Poaceae, the Grass Family
18. Muhlenbergia Schreb. -- Muhly
- 1. Muhlenbergia asperifolia (Nees
& Meyen) Parodi -- Alkali muhly
- 2. Muhlenbergia glomerata (Willd.)
Trin. -- Bristly muhly
- 3. Muhlenbergia mexicana (L.) Trin.
-- Wirestem muhly
- 4. Muhlenbergia racemosa (Trin.) Rydb.
-- Marsh muhly, green muhly
- 5. Muhlenbergia richardsonis (Trin.)
Rydb. -- Mat muhly
Return to Family -- Poaceae - The Grass Family
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