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Montana Animal Field Guide

Montana Field Guides

Beargrass - Xerophyllum tenax

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Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:

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General Description
Glabrate, rhizomatous perennial. Stems leafy, erect, 50–120 cm. Leaves: basal, linear, wiry, scabrous on the margins, 15–60 cm × 2–4 mm, forming large tussocks; cauline leaves alternate, similar. Inflorescence a terminal raceme, expanding from hemispheric to linear-oblong and up to 40 cm long; pedicels ascending, 2–4 cm long. Flowers regular, star-shaped; tepals white, separate, narrowly oblong, 5–10 mm, spreading; stamens longer than tepals; styles 3. Fruit a globose, 3-lobed, several-seeded capsule, 5–8 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

General Distribution
Mapped Observations

 


Distribution Comments
BC, AB south to CA, ID and MT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 238

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Relative Density

Recency

 

(Records associated with a range of dates are excluded from time charts)



Habitat
Coniferous forest, often where fire has reduced tree cover, avalanche slopes, meadows; montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Beargrass — Xerophyllum tenax.  Montana Field Guide.  Montana Natural Heritage Program.  Retrieved on October 22, 2014, from http://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PMLIL26020
 
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