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Montana Field Guide

Montana Field Guides

Small-fruit Bulrush - Scirpus microcarpus


Global Rank: G5
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Rhizomatous. Stems 30–100 cm, rarely clustered. Leaves: blades 5–12 mm wide; basal sheaths reddish. Inflorescence open, compound-umbelliform. Spikelets 3–6 mm long. Scales 1–2.5 mm long, dark green; tip rounded to apiculate. Flowers: bristles 3–6, straight or curved, spinulose, ca. as long as the achene, white turning brown; stigmas 2. Achene 2-sided, whitish, 1–1.5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AK to NL south to CA, AZ, NM, KY and WV (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 20

(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
Marshes, beaver ponds, streambanks; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Small-fruit Bulrush — Scirpus microcarpus.  Montana Field Guide.  .  Retrieved on , from