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Montana Field Guide

Montana Field Guides

Panic Grass - Dichanthelium acuminatum
Other Names:  Panicum acuminatum, Dichanthelium lanuginosum, Panicum lanuginosum, Panicum occidentale

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Status Under Review
Native Species

Global Rank: G5
State Rank: SU

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 9

External Links

 
General Description
Stems 10–30 cm. Leaves: blades 5–10 mm wide, usually <8 times longer than wide, ligule 2–6 mm long. Inflorescence an open panicle 3–8 cm long. Spikelets 1.5–2 mm long; glumes hairy, first 0.5–0.75 mm long, second 1.5–2 mm long. Lemmas: fertile lemma blunt, globe-like. Our plants are subspecies sericeum (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Throughout most of North America; subspecies sericeum is more narrowly confined to the U.S. in the Rocky Mountain states, UT, CO, WY, ID and MT (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(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
Often forming dense stands on wet soils around edges of hot springs (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Panic Grass — Dichanthelium acuminatum.  Montana Field Guide.  .  Retrieved on , from