Sagittaria rigida
PlantsFamily: Alismataceae · Genus: Sagittaria

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 102. · public_domain
About
Sagittaria rigida, the sessilefruit arrowhead or Canadian arrowhead, is an aquatic plant species. It has narrow oval leaves rather than the iconic arrowhead shaped leaves of species like the Sagittaria latifolia. it has sessile female flowers, from whence its name comes. Its flowers are very similar to other plants in the Sagittaria family, with three white petals.
Summary from Wikipedia
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Growing details and traits for Sagittaria rigida in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.