Linnaeus f.

Supplementum Plantarum 32.; 214. 1782.

Etymology: Greek, from aquatic habitat
Treatment appears in FNA Volume 22.

Herbs with milky sap. Leaves sheathing at base; axillary scales present. Inflorescences branched [unbranched], projected above water. Flowers bilaterally symmetric, sessile; stamens 6–18–[50]; filaments distinct; anthers 2-locular; pistils 2–6[–9], sessile. Fruits: beak terminal [lateral], curved or straight. Seeds: endosperm absent; seed coat single or double. x = 8.


North America, native, Africa, tropical regions, Eastern Hemisphere.


Species 47 (1 in the flora).

Selected References