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Montana Field Guide

Montana Field Guides

Wilcox's Panic Grass - Dichanthelium wilcoxianum
Other Names:  Dichanthelium oligosanthes var. wilcoxianum, Panicum wilcoxianum

Status Under Review

Global Rank: G5
State Rank: S3?

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

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General Description
Stems 10–20 cm, usually spreading. Leaves: blades 2–5 mm wide, distinctly hairy; ligule to 1 mm long. Inflorescence an open panicle 2–5 cm long. Spikelets 2.4–3.2 mm long; glumes conspicuously hairy, first 1–1.2 mm long, second 2.5–3 mm long. Lemmas: fertile lemma blunt, spherical (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Phenology
Mostly in early fruit by mid-June. By early July, some fruit dispersal will have occurred, and pubescence on some glumes will have diminished. Late fruit production observed in late August.

Species Range
Present
 


Range Comments
Carter and Custer counties; throughout most central states and provinces in N. America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
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

References
  • Additional ReferencesLegend:   View Online Publication
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    • Heidel, B. L. 1996. Noteworthy collections - Montana. Madrono 43(3):436-440.
    • Heidel, B.L. and K.H. Dueholm. 1995. Sensitive plant survey in the Sioux District, Custer National Forest, 1994, Carter County, Montana and Harding County, South Dakota. Unpublished report to the Custer National Forest. Montana Natural Heritage Program, Helena, Montana. 95 pp. plus appendices.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Wilcox's Panic Grass — Dichanthelium wilcoxianum.  Montana Field Guide.  .  Retrieved on , from