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Ponds. Slower waters of streams.
Most of the U.S. except for ME and some southeast and mid Atlantic states. Absent from Canada.
Submerged aquatic. Leaves finely dissected into filiform segments; relatively rigid. White flowers borne above water; 1-1.5 cm wide; stamens 10-20; beak of achene straight.
Flowers mid May to early August
Wetland indicator: Obligate
The leaves of this species are finely divided, giving them a feathery appearance. The flowers are rather small.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G.
Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
USDA, NRCS. 2002.
The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Michael Hough © 2005