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Montana Field Guide

Montana Field Guides

Black-girdle Bulrush - Scirpus atrocinctus

Status Under Review

Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






 
General Description
Densely caespitose. Stems 30–80 cm, clustered on short rhizomes. Leaves: blades 2–4 mm wide; basal sheaths brown. Inflorescence open-cymose; nearly all spikelets pedunculate. Spikelets 3–5 mm long. Scales 1.5–2 mm long, reddish-brown to black with a green midvein, tip rounded, sometimes apiculate. Flowers: bristles 6, contorted, smooth, white, longer than the scales; stigmas 3. Achene 2- or 3-sided, whitish, 0.5–1 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
NT south to WA, WY, SD, IL and WV. Known from Lincoln and Sanders counties (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat

References
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Citation for data on this website:
Black-girdle Bulrush — Scirpus atrocinctus.  Montana Field Guide.  .  Retrieved on , from