Family: Asteraceae
[Megalodonta beckii (Torr. ex Spreng.) Greene]
Linda W. Curtis
Paul Skawinski
University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)
Etymology: Megalodonta: Greek for "large-toothed," referring to pappus awns
Plants: erect, perennial, aquatic forb; from rhizomes
Leaves: opposite; submersed leaves finely cut, thread-like with smooth edges; emerged leaves stalkless, lance-like with toothed edges
Flowers: head 1"-1 1/2" wide with 1/3"-1/2" long, yellow rays, disk 1/3" wide; inflorescence of one head at the end of a sturdy stalk
Fruits: dry seed with 3-6 barbs
Habitat: clear water to 12'; in soft sediment soil
Conservation Status: Native
Plants: erect, perennial, aquatic forb; from rhizomes
Leaves: opposite; submersed leaves finely cut, thread-like with smooth edges; emerged leaves stalkless, lance-like with toothed edges
Flowers: head 1"-1 1/2" wide with 1/3"-1/2" long, yellow rays, disk 1/3" wide; inflorescence of one head at the end of a sturdy stalk
Fruits: dry seed with 3-6 barbs
Habitat: clear water to 12'; in soft sediment 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
Paul Skawinski
Derek Anderson
Linda W. Curtis
Robert W. Freckmann
Paul Skawinski
Linda W. Curtis
Derek Anderson
Robert H. Read
Robert W. Freckmann
