Menyanthaceae
Aquatic plants. Corolla yellow or white Menyanthaceae
Leaves floating or plant prostrate on mud Nymphoides
Corolla yellow
Corolla lobes fringed on the margins, with a transverse fringe at the base. Seeds smooth, ellipsoid, compressed. Southern Blue Mts Ponds. Fl. spring–summer Nymphoides montana
Corolla lobes scarcely fringed on the margin or near the base. Seeds ± globular, sculptured. Coast and adjacent plateaus. Ponds and margins of rivers. Fl. spring–autumn Nymphoides geminata