English name: Common Duckweed

German name: Kleine Wasserlinse

 

Taxonomy

Division: Magnoliophyta

Class: Liliopsida

Order: Alismatales

Family: Araceae

Genus: Lemna

Species: Lemna minor

 

Common duckweed (Lemna minor) has a subcosmopolitan distribution. Its habitats are ponds, ditches, canals and slow parts of rivers and streams. It prefers water with a high nutrient level and often becomes the dominant population. It is a free floating, monocotyledonous macrophyte with one to four fronds (leaves), each with a single root hanging in the water.

Up to now it’s the only standard macrophyte-testorganism in ecotoxicology (ISO/DIS 20079; OECD 221).

We cultivate Lemna minor in STEINBERG-Medium under full-time light at 24°C.

We offer also “natural” Lemna minor, cultivated in pond water.