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Montana Field Guides

Six Weeks Grama - Bouteloua barbata

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Undetermined Origin

Global Rank: G5
State Rank: SU
C-value:


Agency Status
USFWS:
USFS:
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General Description
Annual bunchgrass. Stems 10–40 cm long. Leaves: blades 1–2 mm wide, often curled. Inflorescence of 4 to 7 secund lateral divergent spikes, each 1–2 cm long and with 25 to 45 spikelets. Spikelets 3–4 mm long. Lemmas hairy and with an awn to 2 mm long, disarticulating from the spikelet, rudimentary florets 1 or 2 (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Collected in Gallatin and Carbon counties; throughout southwest North America (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Open dry disturbed sites, probably ephemeral (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Six Weeks Grama — Bouteloua barbata.  Montana Field Guide.  .  Retrieved on , from