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Plant Encyclopedia

Patrinia villosa

Patrinia villosa ("Otokoeshi")

Japanese name: オトコエシ (男郎花)
Scientific name: Patrinia villosa

Patrinia villosa

[Overview]
A perennial 60–100 cm tall, growing in sunny meadows in the mountains.
The whole plant has a distinctive odor, and even the water in a vase smells after the stems have been arranged.
It sends out long runners and forms new plantlets at their tips.
The stem is erect and hard, covered with coarse hairs, and branches in the upper part.
Leaves are simple and opposite, deeply pinnately divided or with notched, toothed margins.
Cymes at the stem tips bear many flowers.
The flowers are white, 4 mm across; the corolla is 5-lobed and there are 4 stamens.
The fruit is obovate, 2–3 mm long, and has wings.

[Uses]
Under the name haisho, it is used as a crude drug.
The young shoots and leaves can be eaten after their bitterness is removed.

[Cultivation]
Propagate from seed or by division.
As long as the site is sunny and well drained, it is not particular about soil.
For potted plants, water thoroughly when the soil surface dries.
For plants in the ground, rainfall is sufficient unless summer brings a long spell of sunny weather and the soil becomes extremely dry.
Even for potted plants, a small amount of slow-release fertilizer in spring is enough.
Damping-off can occur.

Details

Names
Japanese: オトコエシ(男郎花)、チメクサ、トチナ
Life form
Perennial
Habit
Terrestrial
Planting (or sowing) season
February, March
Flowering season
August, September, October
Distribution or origin
Japan (Hokkaido to Amami), Korea, China
Growth form
Upright
Height
600–1000 mm
Leaf shape
Simple leaf (unlobed), Lobed leaf
Leaf arrangement
Opposite
Leaf margin
Incised
Inflorescence
Cyme
Flower color
White
Flower diameter
4
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seeds, Seedlings
Propagation
Seed, Division
Sun exposure
Full sun
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance, Heat tolerance
Suitable uses
Potted plant, Flower bed, Parks and gardens, Container, Balcony
Diseases
Damping-off
Edible parts
Leaves
Uses
Medicinal, Edible
Japan Flower Trade Code
16048

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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