E-Flora BC: Electronic Atlas of the Flora of British Columbia

Muhlenbergia andina (Nutt.) Hitchc.
foxtail muhly
Poaceae (Grass family)

Introduction to Vascular Plants

© Margaret Krichbaum  Email the photographer   (Photo ID #87905)

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Distribution of Muhlenbergia andina
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Species Information

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Perennial grass from creeping rhizomes; stems hollow, erect, 25-85 cm tall.
Sheaths usually minutely rough near the base; blades flat, 2-4 (5) mm wide, 4-16 cm long, rough- hairy below, hairy above; ligules membranous, jagged to fringed with fine hairs, squared-off at the tips, 0.5-1.5 mm long.
Inflorescence a narrow, spikelike, compact, densely flowered, interrupted or lobed panicle, 2-15 cm long, 5-24 (28) mm wide, the branches 0.5-5 cm long, appressed, ascending; spikelets 1-flowered, nearly unstalked to short-stalked; glumes very narrow, long-pointed to awn-tipped, 1-nerved, minutely rough on the nerve, usually minutely short-hairy, about equal, 2-4 mm long; lemmas lanceolate, greyish-green, the bodies from slightly shorter to somewhat longer than the glumes (not including the awn tips), 2-3.5 mm long, awned, the awns slender, terminal, (1) 4-10 mm long, the calluses bearded with numerous silky hairs nearly or fully as long as the lemmas; paleas lanceolate, almost equal to the lemmas, with silky hairs between the nerves near the base, the tips long-pointed; anthers 0.4-1.5 mm long, yellow.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to moist canyons, streambanks, meadows, and hot springs (in tufa) in the montane zone; rare in SE BC, known only from Fairmont Hot Springs; disjunctly E to MB and S to TX, NM, AZ and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Muhlenbergia andina

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 930 930 930
Slope Gradient (%) 0 0 0
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 6
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: IDF(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Muhlenbergia comata (Thurb.) Thurb. ex Benth.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References