Sagittaria lancifolia L.
-
Authority
Bogin, Clifford. 1955. Revision of the genus Sagittaria (Alismataceae). Mem. New York Bot. Gard. 9 (2): 179-233.
-
Family
Alismataceae
-
Scientific Name
-
Description
Species Description - Perennial with well-developed rhizomes. Leaves typically emersed with linear to ovate or elliptical blades 12-35 x 0.7-19 cm, the rare submerged leaves modified into stiff, terete phyllodia to 50 cm long, the petioles to 100 cm long. Scape overtopping the leaves, 40-210 cm long, simple with 5-12 whorls of flowers or frequently branching at the lowest whorl. Bracts thickened, more or less joined at the base, striate to papillose, elongate, 0.5-3.5 cm long. Pedicels ascending, 1-5 cm long. Sepals reflexed, striate to papillose, 0.5-1 cm long; petals white, about twice as long as the sepals. Stamens large and numerous, the linear pubescent filaments 1.5-5 mm long, the oblong anthers 1-2.7 mm long. Mature receptacle 1-1.8 cm in diameter; achenes narrowly obovate to falcate, 1.5-2.3 x 0.8-1.2 mm, the dorsal wings 0.3-0.4 mm wide, occasionally somewhat inflated, the ventral wings 0.15 mm or less wide, the faces with 0-2 low wings or rarely with a resin duct, the obliquely inserted, thick-based beaks 0.3-0.7 mm long.