Notes For Reference:-

Species, Varieties, or Forms in the Genus Rorippa:

Rorippa indica / Inugarashi
Rorippa islandica / Sukashitagobou
　

Rorippa islandica / Sukashitagobou スカシタゴボウ

Rorippa islandica is a 35-50cm height annual or biennial herb occurring in paddies or wetlands on roadsides. Radical leaves are 5-15cm long, pinnately lobed, and the lobes are coarsely cleft. On-stem leaves are shallowly cleft - each becomes the upper the shallower upward, with bases expanding a little to embrace the stems in a pair-of-ears way. Flowers are yellow, 3-4mm in diameter, and the fruit is 5-8mm in length. Bloom time: April-June.