borealforest.org

 
BACK

Herbs and Other Plant Species of the World's Boreal Forests

World Boreal Trees

GLOSSARIES
Terminology | Pictorial

   
Lemna minor
Lesser Duckweed
Lemnaceae (Duckweed Family)

A diminutive floating aquatic perennial, often forming a solid cover on the surface, only 1 - 15 mm in size.

Description

Lesser Duckweed Distinguishing Features - Leaves and stems merged in common structure typically called a frond or thallus, though neither term is correct by actual botanical definition. The frond itself consists of one to several layers of conspicuous air spaces and one to several veins. Frond is flattened, suborbicular to elliptic-obovate in outline; generally symetrical, with smooth upper surface. Flowering duckweeds are uncommon.

Habitat

Widespread throughout temperate regions of the northern hemisphere, including North America and Eurasia; in freshwater ponds, marshes, lakes, and quiet streams; spreads rapidly across quiet bodies of water rich in nutrients, growing best in water with high levels of nitrogen and phosphate.

Notes

Lemna, from the Greek, lemna, meaning "water-plant" and minor, from the Latin, minor, meaning "lesser".

Return to Top of Page



Home | Forest Capital of Canada | About Our Website |
Ontario's North (West) Forest | Boreal Forests of the World | North (West) Forest Industry |
World Links and Resources | "Forest Finder" Search Engine | Educational Resources |
What's Happening | Contacts | Site Map |