Notes For Reference:-

Species, Varieties, or Forms in the Genus Wasabia:

Wasabia japonica / Wasabi
Wasabia tenuis / Yuriwasabi
　

Wasabia japonica / Wasabi ワサビ

Wasabia japonica, a perennial plant that inhabits clear waters in valleys of mountainous regions, grows to 20-40cm tall. Radical leaves have long petioles. The blades measure 6-12cm in diameter, are orbicular, and have cordate bases. They also have wavy serrations on their margins and a glossy surface. These leaves pass the winter. Short racemes give 4-petaled white flowers with leaf-like bracts at the small grounds of peduncles. The petals are in the shape of an oblanceolate, approximately 1cm across, with bases that resemble nails. Stamens are 6 in number, and the anthers are yellow. Bloom time: March-May.