Peucedanum japonicum
Family: Apiaceae or Umbelliferae
What it is like
Peucedanum japonicum is a PERENNIAL growing to 0.6 m (2ft). It is in flower from July to August, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil. The plant can tolerate maritime exposure.
Height (m): 0.6
Where it is found
Sandy places near seashores, C. and S. Japan.
E. Asia - China, Japan, Korea and the Phillipines.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 1
Young leaves - parboiled.
Medicine
Rating: 2
The root contains coumarins and has been shown to be cytotoxic and inhibit the clotting of the blood. It is used medicinally in Korea in the treatment of migraine headaches, colds and rheumatoid arthritis.
Antiarthritic: Treats arthritis.
Cytotoxic: Destroys body cells. Used in the treatment of diseases such as cancer, where it is targeted against the cancer cells.
Other
Rating:
How it is grown
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors at least in the milder areas of this country. The following notes are based on the general needs of the genus. An easily grown plant, it succeeds in any moisture-retentive soil in a sunny position. Suitable for group plantings in the wild garden.
Propagating it: Seed - we have no information on this species but suggest sowing the seed in a cold frame as soon as it is ripe if this is possible otherwise in early spring. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Best place to grow: Cultivated Beds;
Habit: Perennial
Hardiness:
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist
Things to keep in mind
Although no mention of toxicity has been seen for this species, skin contact with the sap of a number of members in this genus is said to cause photo-sensitivity and/or dermatitis in some people. They are also said to contain the alleged 'psychotroph' myristicine.