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Montana Field Guide

Montana Field Guides

Nevada Bulrush - Amphiscirpus nevadensis
Other Names:  Scirpus nevadensis

Status Under Review
Native Species

Global Rank: G4
State Rank: S3S4

Agency Status
MNPS Threat Rank:
C-value: 9

External Links

General Description
Perennials with creeping rhizomes; culms subterete, 10-50 cm tall. Leaves clustered near base of culms, the lower sometimes reduced to bladeless sheaths, the upper with channeled or flat baldes to 20 cm long and 1-3 mm wide. Leaflike involucral bract solitary, 1.5-7 mm long; scalelike involucral bracts 1 or more, sometimes with the firm midrib exserted as an awn shorter than the body. Spikelets (1-)2-10, sessile in a compact cluster, 1-2 cm long; scales shining brown, with white, hyaline, sometimes ciliolate margins, teh apex entire, the midrib firmer than the body and greenish, not exserted as a mucro; perianth bristles 1-3(-4), retrorsely barbellate, mostly less than 1/2 the length of the achene; styles 2-branches for ca. 1/2 their length or less; achenes ca. 2 mm long, planoconvex, cellular-reticulate (adapted from: Welsh et al., 1993, A Utah Flora, 2nd ed.).

Species Range

Range Comments
BC to MB south to CA, NM, and NE (Kartesz in prep. 2012).

Observations in Montana Natural Heritage Program Database
Number of Observations: 6

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



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

Wet, alkaline prairie and muddy shores of alkaline ponds and lakes in the valley zone and on the plains.

  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Chadde, Steve. Sensitive Plant Survey, Pinkham Analysis Area, Kootenai National Forest. Unpublished Report, 26 Pp.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:
Nevada Bulrush — Amphiscirpus nevadensis.  Montana Field Guide.  .  Retrieved on , from