Star Duckweed

Lemna trisulca

Basic Information

Family: Lemnaceae

Genus: lemna

Plant ID (slug): lemna-trisulca

Numeric ID: 23634

USDA Hardiness: 4-8

Ratings

Physical Characteristics

Lemna trisulca is a PERENNIAL. See above for USDA hardiness. It is hardy to UK zone 4 and is not frost tender. It is in flower from May to July. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant). It is noted for attracting wildlife. Suitable pH: neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It can grow in water.

Distribution

Europe, including Britain, from Scandanavia south and east to N. Africa, Asia, N. America, Australia

Habitats

Pond;

Edible Uses

None known

Medicinal Uses

A poultice of the wetted plant, combined with another plant, has been used in the treatment of swellings[257].