Coefficient of Conservatism:
Coefficient of Wetness:
WAPATO, DUCK-POTATO, COMMON ARROWHEAD
Wet and moist places generally: shallow water and shores of lakes, ponds, ditches, streams, rivers, swamps, marshes, and bogs.
Common throughout the state and highly variable. Although mature or almost-mature achenes are needed for positive identification; some immature specimens can be placed by a combination of short bracts and very narrow leaf lobes. In rich sites, it can grow to a larger size than any other species. Does not produce floating leaves or distinctive phyllodial submersed leaves, as do S. cristata, S. cuneata, and S. graminea.