Alisma gramineum Lejeune. Grassleaf Water-plantain. Phen: Jun-Aug (-Sep). Hab: In seasonally flooded areas in impoundments. Dist: This species is circumboreal, ranging in North America south to e. VA, NY, WI, s. MO, NM, and CA.
Origin/Endemic status: Native
Other Comments: The occurrence of this species in our area may be the result of sporadic dispersal by waterfowl; first reported for VA by Wieboldt et al. (1998).
Synonymy: = AqW, C, F, FNA22, GrPl, K1, K3, K4, Mo1, NE, NY, Va; < Alisma plantago-aquatica L. var. americanum Schult. – G
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL
- Eastern Mountains and Piedmont: OBL
- Great Plains: OBL
- Midwest: OBL
- Northcentral & Northeast: OBL
Heliophily: 8
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