Deciduous, free-floating, aquatic perennials that form a rapidly-expanding mat of foliage (to 1/4” tall) on still water surfaces. Each plant consists of an oval-rounded, flattened green frond (to 1/8” long) with a single downward-trailing root. Foliage is bright green. Tiny flowers are white, but rarely produced.

Alterative, antipruritic, antiscorbutic, astringent, depurative, diuretic, febrifuge and soporific (whole plant)

Lemna minor
Wikipedia, the free encyclopedia
Plants for a Future
Remedies

In the treatment of colds, measles, oedema, difficulty in urination, skin diseases and is used as a wash for ophthalmia (whole plant)