Common Name:

General Information

Ohwia caudata is a much-branched, erect, perennial plant with more or less woody stems that persist. It can grow from 100 - 200cm tall[].
The plant is harvested from the wild for local use as a medicine and a pesticide.

Known Hazards

None known

Botanical References

,

Range

E. Asia - China, Japan, Korea, India, Sri Lanka, Bhutan, Myanmar, Laos, Vietnam, Malaysia, Indonesia.

Habitat

Woods in C. and S. Japan[]. Mountain slopes, roadsides, grasslands, streamsides and forest margins at elevations of 100 - 1,000 metres in China[].

Properties

Medicinal Rating
Other Uses Rating
Habit	Deciduous Shrub
Height	1.50 m
Pollinators	Insects
Cultivation Status	Wild

Cultivation Details

Requires a well-drained soil and a sunny sheltered position[].
Because of the abundant small uncinate hairs on most species, the seedpods cling most tenaciously to clothing, to any part of the human body, and also to the feathers and hair of various animals, thus ensuring a wide dispersal of the plants[].
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[].

Edible Uses

None known

Medicinal

The plant is analgesic, antipyretic, antiseptic and depurative[].
The root and leaves are diuretic[].

Other Uses

The roots and leaves are used as a pesticide[].

Propagation

Seed - best sown as soon as it is ripe. Stored seed develops a hard seedcoat and may benefit from scarification before sowing in order to speed up and improve germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing.
The seed usually germinates within 1 - 4 months at 25°c. Prick out the seedlings into individual pots once they are large enough to handle and grow them on until large enough to plant out.
Cuttings of half-ripe wood with a heel.
Division. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on until they are rooting well.
Root cuttings.

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.

Name:

Email(Private):

Message:

Captcha: How many suns are in our solar system