Plant Encyclopedia
Rorippa indica ("Inugarashi")
Japanese name: イヌガラシ （犬芥子）
Scientific name: Rorippa indica
[Overview]
An annual or biennial 10–60 cm tall, found on sunny roadsides and in fields.
The stem branches.
Leaves are alternate, 3–15 cm long and 1–5 cm wide, oblong-lanceolate to ovate and undivided, or shallowly to moderately pinnately lobed with a large terminal lobe.
The leaf margins have coarse teeth.
Racemes bear yellow 4-petaled flowers about 0.5 cm across.
The fruit is a linear silique 1–2.4 cm long, curved upward in an arc, with the seeds somewhat in two rows.
Michibata-garashi has flowers without petals and straight fruits.
Details
Names
Japanese: イヌガラシ（犬芥子）
Life form
Annual, Winter annual
Habit
Terrestrial
Similar plants
Flowering season
April, May, June, July, August, September
Distribution or origin
Japan (Hokkaido to Ryukyu), Korea, China, Taiwan, Southeast Asia to South Asia
Height
100–600 mm
Leaf shape
Simple leaf (unlobed), Lobed leaf
Leaf arrangement
Alternate
Leaf margin
Serrate
Inflorescence
Raceme
Number of petals
4
Flower color
Yellow
Flower diameter
5
Leaf color
Green
Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.