Bidens tripartita
Bidens tripartita
Üç suketeni
Stems 30-60 cm. Leaves 4-15 cm, 3- to 5-partite, segments lanceolate. lnvolucre 10-20 mm broad, erect. Achenes compressed, bearing 2 aristae. Fl. 7-9. River banks, marshes, ditches, nr s.l.-1950 m.
Temperate Eurasia, N. Africa, N. America.
