"Lepidium is a genus of plants in the mustard/cabbage family, Brassicaceae. The genus is widely distributed in the Americas, Africa, Asia, Europe, and Australia. It includes ...
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familiar species such as garden cress, maca, and dittander. General common names include peppercress, peppergrass, and pepperwort. Some species form tumbleweeds.
The genus name Lepidium is a Greek word meaning ´small scale´, which is thought to be derived from a folk medicine usage of the plant to treat leprosy, which cause small scales on the skin. Another meaning is related to the small scale-like fruit." - (en.wikipedia.org 16.12.2019)