Menyanthaceae >

Aquatic plants. Corolla yellow or white Menyanthaceae

Leaves floating or plant prostrate on mud Nymphoides

Corolla lobes without a crested membrane along the middle. Leaves entire or very slightly crenate

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