English: Water Violet; Featherfoil.
Clades: Primulaceae.
Region: Europe, northern Asia.
Habitat: aquatic; bogs, marshes, in or around ponds; prefers good substrate, light, additional CO2l.
Use: ornamental; cool or tropical aquarium.

BotanyHerb; aquatic; submersed or floating.
Stem: up to 80 cm tall.
Roots: buried in the underlying mud; other silvery, shiny roots dangle freely in the water.
Leaves: deeply divided as far as the central vein; resembling teeth of a double comb; completely submerged; alternate or connected to the stem in more or less regular whorls.
Flowers: hermaphrodite; self-fertile; flowering from May to June.
Pollination: by insects, cleistogamy.