Family: Alismataceae
crested arrow-head
[Sagittaria graminea var. cristata Michx.]
Robert W. Freckmann
Paul Skawinski
Etymology: Sagittaria: from Latin sagitta, "arrow," because of the leaf shape
Plants: erect or floating, perennial, emergent aquatic
Leaves: flat, usually long and narrow and not arrow-shaped
Flowers: white to pink, 3-parted, 1/3" wide; inflorescence of 2-12 whorls of flowers, usually upper flowers male, lower female; blooms July-Sept.
Fruits: dry, flattened seed with toothed wings, beak 0.4-0.7mm long
Habitat: swamps, shallow water; in muddy soil
Conservation Status: Native
Emergent or submerged leaf aquatic of shores and shallow waters of lakes, ponds and wetlands on sandy or muddy substrate.
Occasional, northern and central parts of the state. Similar to S. graminea but distinguished by achenes having a longer beak and a scalloped dorsal ridge, and stiff submerged leaves (vs. flaccid in S. graminea). Achene resin gland present and conspicuous; beak tip perpendicular to long axis.
Plants: erect or floating, perennial, emergent aquatic
Leaves: flat, usually long and narrow and not arrow-shaped
Flowers: white to pink, 3-parted, 1/3" wide; inflorescence of 2-12 whorls of flowers, usually upper flowers male, lower female; blooms July-Sept.
Fruits: dry, flattened seed with toothed wings, beak 0.4-0.7mm long
Habitat: swamps, shallow water; in muddy soil
Conservation Status: Native
Emergent or submerged leaf aquatic of shores and shallow waters of lakes, ponds and wetlands on sandy or muddy substrate.
Occasional, northern and central parts of the state. Similar to S. graminea but distinguished by achenes having a longer beak and a scalloped dorsal ridge, and stiff submerged leaves (vs. flaccid in S. graminea). Achene resin gland present and conspicuous; beak tip perpendicular to long axis.
Emergent or submerged leaf aquatic of shores and shallow waters of lakes, ponds and wetlands on sandy or muddy substrate.
Occasional, northern and central parts of the state. Similar to S. graminea but distinguished by achenes having a longer beak and a scalloped dorsal ridge, and stiff submerged leaves (vs. flaccid in S. graminea). Achene resin gland present and conspicuous; beak tip perpendicular to long axis.
Occasional, northern and central parts of the state. Similar to S. graminea but distinguished by achenes having a longer beak and a scalloped dorsal ridge, and stiff submerged leaves (vs. flaccid in S. graminea). Achene resin gland present and conspicuous; beak tip perpendicular to long axis.
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 9, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos
Paul Skawinski
Robert W. Freckmann
