Etymology: Isoetes: from Greek isos, "ever," and etas, "green," implying the character of being evergreen. Note"
Plants: perennial, submersed aquatic; underground, thick, lobed stem with forked roots
Leaves: 4 long air chambers, center vein, dark green, firm, often twisted
Habitat: wet; lakes, ponds, soft water 3' to > 10'; in sandy, gravelly soil
Conservation Status: Native

Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 8, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Fern & Fern Allies: Photos, descriptions, information