being Eutrema japonicum (Miq.) Koidz.

Description

It has large leaves produced from long, thin stalks. They are simple and large, 3-6 in long and 3-6 in wide with palmate veins.

Flowering

Wasabi flowers appear in clusters from long stems that bloom from late winter to early spring.

In Japan, Wasabi begins to flower in January, as cold temperatures cause vernalization