Montana Field Guide

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Montana Field Guides

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- Kingdom - Plants - Plantae
  - Division - Flowering Plants - Anthophyta
    - Class - Monocots - Monocotyledoneae
      - Order - Grasses/Sedges - Cyperales
        
        Family - Grasses - Poaceae
        
        Species - Ditch reedgrass - Calamagrostis scopulorum

Ditch reedgrass - Calamagrostis scopulorum

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Status Under Review
Native Species

Global Rank: G5
State Rank: SU
C-value: 4

Agency Status
USFWS:
USFS:
BLM:

External Links

General Description

Rhizomatous bunchgrass. Stems 50–80 cm. Leaves: blades 5–7 mm wide. Inflorescence a contracted panicle 6–12 cm long. Spikelets 6–7 mm long. Lemma with a slender straight awn not surpassing the lemma tip, callus hairs >1/2 as long as the lemma (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments

Throughout the Rocky Mountain states in the U.S. (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database

Number of Observations: 15

(Click on the following maps and charts to see full sized version) Map Help and Descriptions

Relative Density

Recency

(Observations spanning multiple months or years are excluded from time charts)

Habitat

Dry understory at middle elevations (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.
- Martin, S.A. 1985. Ecology of the Rock Creek bighorn sheep herd, Beartooth Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 152 p.
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Citation for data on this website:
Ditch reedgrass — Calamagrostis scopulorum. Montana Field Guide. Montana Natural Heritage Program. Retrieved on April 20, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PMPOA17120