Plant Encyclopedia
Perilla hirtella ("Toranojiso")
Japanese name: トラノオジソ (虎尾紫蘇)
Scientific name: Perilla hirtella
[Overview]
An annual 20–70 cm tall, found in damp shade and similar places in the mountains.
The stem has 4 ridges and is densely covered with soft hairs.
Leaves are simple and opposite, broadly elliptic, with coarse long hairs on the upper surface.
The leaf margins have fine serrations extending to the base.
The petioles are long and often tinged with reddish purple.
Slender racemes at the branch tips bear many pale pink labiate flowers 4–5 mm long.
The calyx is small, 4 mm long at flowering and 5–6 mm even in fruit.
The flowers have bracts.
The fruit is a schizocarp.
Details
Names
Japanese: トラノオジソ(虎尾紫蘇)
Life form
Annual
Habit
Terrestrial
Similar plants
Flowering season
August, September, October
Distribution or origin
Japan (Honshu to Kyushu)
Height
200–700 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Opposite
Leaf margin
Serrate
Inflorescence
Raceme
Flower color
Pink
Leaf color
Green
Designated plants
Endemic to Japan
Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.
