Three-square Bulrush - Schoenoplectus americanus
Other Names:
Scirpus americanus
Native Species
Global Rank:
G5
State Rank:
S5
C-value:
6
Agency Status
USFWS:
USFS:
BLM:
External Links
Stems 40–150 cm, 3-sided with concave sides. Leaf blades short, flat or folded, 2–8 mm wide. Inflorescence compact, of 2 to 15 sessile spikelets. Spikelets 6–15 mm long. Scales 3–4 mm long, glabrous, reddish to purplish-brown; awn ca. 0.5 mm long. Flowers: bristles 5 or 6, ca. as long as achene; stigmas 2 or 3. Achene 2- or 3-sided with rounded edges, brown, ca. 3 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).