Watercress

Description:

Watercress, with the botanical name Nasturtium officinale, is a rapidly growing, aquatic or semi-aquatic, perennial plant native to Europe and Asia, and one of the oldest known leaf vegetables consumed by humans. It is currently a member of the family Brassicaceae, botanically related to garden cress, mustard and radish, and it was introduced in NZ. It was spotted growing in moist ground, because of a broken water pipe, in Houghton bay, Wellington NZ.