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

World Boreal Trees

Terminology | Pictorial

Rorippa nasturtium-aquaticum
True Watercress
Brassicaceae (Mustard Family)

An aquatic plant with stems that float in water of creep over the ground, growing to a height of 10 - 25 cm.

True Watercress Description

Distinguishing Features - Leaves: compound, partly or completely submerged 2 - 15 cm long, with 5 to 9 oval segments, terminal ones are larger than side ones. Flowers: white, 4 mm wide, with 4 petals. Fruit: seed pod >2.5 cm long, curving upward.


Native to Europe; introduced to North America; along brooks, streams, ponds and lakes.


Cultivated for the pepper-flavored leaves which are hgh in vitamins A and C.

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