Family: Alismataceae
sessile-fruited arrow-head, stiff arrow-head
[Sagittaria heterophylla Pursh, more...]
Eric J. Epstein
Robert W. Freckmann
University of Wisconsin - Madison (WIS-VP)
Etymology: Sagittaria: from Latin sagitta, "arrow," because of the leaf shape
Plants: erect or floating, perennial, emergent aquatic, 4"-24" tall
Leaves: usually broadly lance-shaped, sometimes with small lobes at the base
Flowers: white, 3-parted, 1/2"-1" wide; inflorescence of 2-8 whorls of flowers with 1 unbranched stalk usually shorter than the leaves and bending at the lowest node; upper male flowers large and stalked, lower female flowers smaller and stalkless; blooms July-Sept.
Fruits: dry, flattened, winged, stalkless seed with angled, long beak,
Habitat: swamps, shallow water
Conservation Status: Native
Plants: erect or floating, perennial, emergent aquatic, 4"-24" tall
Leaves: usually broadly lance-shaped, sometimes with small lobes at the base
Flowers: white, 3-parted, 1/2"-1" wide; inflorescence of 2-8 whorls of flowers with 1 unbranched stalk usually shorter than the leaves and bending at the lowest node; upper male flowers large and stalked, lower female flowers smaller and stalkless; blooms July-Sept.
Fruits: dry, flattened, winged, stalkless seed with angled, long beak,
Habitat: swamps, shallow water
Conservation Status: Native
Emergent, floating leaved, or submerged aquatic herb of shorelines, marshes, and floodplains. Often found on nutrient rich substrates.
Frequent in the northern part of the state becoming occasional in south. The leaf blades of this species usually lack the basal lobes characteristic of other Sagittaria species. That, plus the very short or absent lower pedicles is diagnostic for S. rigida in the flora region.
Frequent in the northern part of the state becoming occasional in south. The leaf blades of this species usually lack the basal lobes characteristic of other Sagittaria species. That, plus the very short or absent lower pedicles is diagnostic for S. rigida in the flora region.
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 8, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos
Robert W. Freckmann
Paul Skawinski
