Sagittaria brevirostra Mack. & Bush
Family: Alismataceae
midwestern arrow-head,  more...
[Sagittaria engelmanniana subsp. brevirostra J.G.Sm.]
Sagittaria brevirostra image
from USDA Plants website  
Etymology: Sagittaria: from Latin sagitta, "arrow," because of the leaf shape
Plants: erect or floating, perennial, emergent aquatic
Leaves: arrow-shaped, long stalks corrugated in cross-section
Flowers: white, 3-parted, 1/2"-1 1/3" wide; inflorescence of 5-12 whorls of flowers with long bracts, stalk usually 1-angled and unbranched; most upper flowers male, lower female; blooms July-Oct.
Fruits: dry, flattened and winged seed with an erect beakseed drawing
Habitat: shallow water, swamps, ponds
Conservation Status: Native
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