Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Hardstem Bulrush - Schoenoplectus acutus
Other Names:  Scirpus acutus


Global Rank: G5
State Rank: S4S5

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

External Links






 
General Description
Stems terete, 50–200 cm, filled with spongy air cavities. Leaf blades reduced to scales. Inflorescence open or congested with small clusters of spikelets on tips of spreading to erect peduncles. Spikelets 5–10 mm long. Scales 3–4.5 mm long, ciliate, sparsely puberulent, gray to tan-hyaline with short, dark red, parallel lines; awn twisted 1–2 mm long. Flowers: bristles ca. 6, ca. as long as achene; stigmas 2 or 3. Achene usually 2-sided, gray to nearly black, 2–3 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout temperate N. America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 37

(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
Fresh or saline marshes around ponds, lakes, sloughs; plains, valleys, montane, rarely higher (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Hardstem Bulrush — Schoenoplectus acutus.  Montana Field Guide.  .  Retrieved on , from