Sagittaria graminea Michaux. clade: Graminea Group, Graminea Complex. Grassleaf Arrowhead. Phen: May-Nov. Hab: Marshes, ponds, freshwater and oligohaline tidal marshes. Dist: NL (Newfoundland) and NL (Labrador) west to MN and SD, south to s. FL and c. TX; West Indies.

Origin/Endemic status: Native

Synonymy: = Ar, ETx1, Il, K3, K4, Mi, Ok, Tx, Va, WV; = Sagittaria graminea Michx. ssp. graminea – NY, Sorrie, Keener, & Edwards (2007); = Sagittaria graminea Michx. var. graminea – C, G, GrPl, GW1, K1, Mo1, NE, Pa, RAB, SFla, WH3, Wooten (1973); > Sagittaria cycloptera (J.G.Sm.) C.Mohr – S, S13; > Sagittaria eatonii J.G.Sm. – F, Tat; < Sagittaria graminea Michx. – W; > Sagittaria graminea Michx. – F, S, S13, Tat; < Sagittaria graminea Michx. ssp. graminea – AqW, FNA22, Keener (2005); < Sagittaria graminea Michx. var. graminea – Bogin (1955), (also see S. isoetiformis)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: OBL
• Eastern Mountains and Piedmont: OBL
• Great Plains: OBL
• Midwest: OBL
• Northcentral & Northeast: OBL

Heliophily ?: 8