... Alisma triviale has been planted in free water surface constructed wetlands; weeds: Alisma lanceolatum and A ... gramineum and A. subcordatum (2n = 14) are diploids; A. lanceolatum (2n = 26, 28) and A. triviale (2n = 28) are ...
... Alisma Sagittaria 1a . Leaves linear , 0.2–2 ( −3 ) cm wide ; abaxial edge of achenes with 2 grooves ; style ± coiled A. gramineum 1b . Emersed leaves with narrow - lanceolate to ovate blades 3-12 cm wide ; abaxial edge of achenes with ...