Dwarf Bulrush - Lipocarpha micrantha
State Rank Reason (see State Rank above)
Known in Montana from a 1941 Collection by W. E. Booth near Fromberg.
Tufted, grass-like annual with fibrous roots and slender stems that are up to 10 cm tall. The few, narrow leaves are borne near the base. Flowers are borne in 1-3 egg-shaped, pine cone-like sessile inflorescences, or spikes, that are subtended by 2-3 green, leaf-like bracts. One bract is held nearly erect and appears to be a continuation of the stem. Each spike is composed of numerous, spirally arranged, pointed scales. Each of these outer scales subtends a smaller, membranous inner scale, an ovary, and a single stamen. The fruit is a flattened, egg-shaped achene that is smaller than the inner scale.
Flowering in August.
Previous reports of hemicarpha drummondii for Montana are based on this species.
BC to QC south to CA, AZ, NM, TX, AL, FL. Collected in Carbon County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Reported elsewhere on moist, sandy soil along rivers and streams in the valleys.