Hairy Water Fern - Marsilea vestita
MNPS Threat Rank
Leaf petioles 1–20 cm long (to 40 cm when floating). Pinnae 3–19 mm long, sparsely pubescent to glabrous. Sporocarps slightly nodding, 3–6 mm long, densely pubescent but glabrous with age; lower tooth ca. 0.5 mm; the upper tooth longer and acute (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
BC to SK south to Mexico and S. America (Lesica 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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Fresh to saline, shallow water of ponds, reservoirs, sloughs; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.