Sagittaria australis
PlantsFamily: Alismataceae · Genus: Sagittaria

Charles Mohr. 1824-1901 · public_domain
About
Sagittaria australis, the Appalachian arrowhead or longbeak arrowhead, is a plant found in North America. It is a perennial herb up to 130 centimetres tall. It is an unusual Sagittaria species in that it has a five-winged petiole. The flowers are up to 3 cm (1 in) in diameter, white, producing an achene with a recurved beak.
Summary from Wikipedia
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Growing details and traits for Sagittaria australis in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.