Perennial herbs, in or near water, strongly rhizomatous, with stems emergent or floating; leaves alternate and distichous, linear and parallel-veined; flowers unisexual (plants monoecious), regular, in dense headlike or cylindric clusters; fruit a drupe or follicle.
Seed Type:
Angiosperm
Origin:
Native: native to North America. Non-native: not native to North America. Introduced Native: native to North America, but not Rowe Woods.
* Definitions based on the USDA terminology