Wolffia columbiana H. Karst. | | a | | Wolffia columbianaH. Karst. | |
Wolffia arrhiza (L.) Horkel ex Wimm. | | a | | Wolffia arrhiza(L.) Horkel ex Wimm. | |
Wolffia globosa (Roxb.) Hartog & Plas | | a | | Wolffia globosa(Roxb.) Hartog & Plas | |
Wolffia cylindracea Hegelm. | | a | | Wolffia cylindraceaHegelm. | |
Wolffia arrhiza (L.) Horkel ex Wimm. var. arrhiza | Wolffia arrhiza (L.) Horkel ex Wimm. | | i | Wolffia arrhiza(L.) Horkel ex Wimm. var.arrhiza | Wolffia arrhiza(L.) Horkel ex Wimm. |