Ranunculus japonicus
Thunb.
Ranunculaceae
The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Mao Gen
General Information
Ranunculus japonicus is a perennial plant that can grow up to 0.10 metres tall.
It is harvested from the wild for local use as a food and medicine
Known Hazards
The leaves are poisonous. The toxicity is of a low measure and the toxins can be destroyed by heat or by drying[
4- Title
- A Modern Herbal.
- Publication
-
- Author
- Grieve.
- Publisher
- Penguin
- Year
- 1984
- ISBN
- 0-14-046-440-9
- Description
- Not so modern (1930's?) but lots of information, mainly temperate plants.
,
10- Title
- Poisonous Plants and Animals.
- Publication
-
- Author
- Altmann. H.
- Publisher
- Chatto and Windus
- Year
- 1980
- ISBN
- 0-7011-2526-8
- Description
- A small book, reasonable but not very detailed.
,
13- Title
- Hamlyn Encyclopaedia of Plants.
- Publication
-
- Author
- Triska. Dr.
- Publisher
- Hamlyn
- Year
- 1975
- ISBN
- 0-600-33545-3
- Description
- Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.
,
19- Title
- Poisonous Plants.
- Publication
-
- Author
- Stary. F.
- Publisher
- Hamlyn
- Year
- 1983
- ISBN
- 0-600-35666-3
- Description
- Not very comprehensive, but easy reading.
,
62- Title
- A Field Guide to N. American Edible Wild Plants.
- Publication
-
- Author
- Elias. T. and Dykeman. P.
- Publisher
- Van Nostrand Reinhold
- Year
- 1982
- ISBN
- 0442222009
- Description
- Very readable.
,
65- Title
- A Colour Atlas of Poisonous Plants.
- Publication
-
- Author
- Frohne. D. and Pfänder. J.
- Publisher
- Wolfe
- Year
- 1984
- ISBN
- 0723408394
- Description
- Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
]. Many if not all plants in this genus also have a strongly acrid juice that can cause blistering to the skin[
65- Title
- A Colour Atlas of Poisonous Plants.
- Publication
-
- Author
- Frohne. D. and Pfänder. J.
- Publisher
- Wolfe
- Year
- 1984
- ISBN
- 0723408394
- Description
- Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
,
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
].
Botanical References
58- Title
- Flora of Japan. (English translation)
- Publication
-
- Author
- Ohwi. G.
- Publisher
- Smithsonian Institution
- Year
- 1965
- ISBN
- -
- Description
- The standard work. Brilliant, but not for the casual reader.
,
266- Title
- Flora of China
- Publication
-
- Author
-
- Website
- http://flora.huh.harvard.edu/china/
- Publisher
- Missouri Botanical Garden Press; St. Louis.
- Year
- 1994
- ISBN
-
- Description
- An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
Range
E. Asia - China, Japan, Korea.
Habitat
Moist soils in grassy places in lowland and mountains all over Japan[
58- Title
- Flora of Japan. (English translation)
- Publication
-
- Author
- Ohwi. G.
- Publisher
- Smithsonian Institution
- Year
- 1965
- ISBN
- -
- Description
- The standard work. Brilliant, but not for the casual reader.
].
Properties
| Edibility Rating |  |
| Medicinal Rating |  |
| Habit | Perennial |
| Height | 0.10 m |
| Pollinators | Insects |
| Cultivation Status | Wild |
Cultivation Details
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 in most parts of the country. It is clsely related to R. acris[
266- Title
- Flora of China
- Publication
-
- Author
-
- Website
- http://flora.huh.harvard.edu/china/
- Publisher
- Missouri Botanical Garden Press; St. Louis.
- Year
- 1994
- ISBN
-
- Description
- An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
]. The following notes are based on the general needs of the genus.
Prefers a moist loamy soil[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
].
A greedy plant, inhibiting the growth of nearby plants, especially legumes[
54- Title
- How to Enjoy your Weeds.
- Publication
-
- Author
- Hatfield. A. W.
- Publisher
- Frederick Muller Ltd
- Year
- 1977
- ISBN
- 0-584-10141-4
- Description
- Interesting reading.
].
Edible Uses
Leaves - cooked[
105- Title
- Tanaka's Cyclopedia of Edible Plants of the World.
- Publication
-
- Author
- Tanaka. T. & Nakao S.
- Publisher
- Keigaku Publishing; Tokyo
- Year
- 1976
- ISBN
- -
- Description
- The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
]. The leaves contain a low level of toxicity that is not enough to be injurious[
179- Title
- Famine Foods listed in the Chiu-Huang Pen-ts'ao.
- Publication
-
- Author
- Reid. B. E.
- Publisher
- Southern Materials Centre; Taipei
- Year
- 1977
- ISBN
- -
- Description
- A translation of an ancient Chinese book on edible wild foods. Fascinating.
].
Medicinal
The plant is decongestant and vermicide[
147- Title
- A Barefoot Doctors Manual.
- Publication
-
- Author
- ?
- Publisher
- Running Press; Philadelphica.
- Year
- 1977
- ISBN
- 0-914294-92-X
- Description
- A very readable herbal from China, combining some modern methods with traditional chinese methods.
,
218- Title
- Medicinal Plants of China
- Publication
-
- Author
- Duke. J. A. and Ayensu. E. S.
- Publisher
- Reference Publications, Inc.
- Year
- 1985
- ISBN
- 0-917256-20-4
- Description
- Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
]. It is used in the treatment of malaria[
147- Title
- A Barefoot Doctors Manual.
- Publication
-
- Author
- ?
- Publisher
- Running Press; Philadelphica.
- Year
- 1977
- ISBN
- 0-914294-92-X
- Description
- A very readable herbal from China, combining some modern methods with traditional chinese methods.
,
218- Title
- Medicinal Plants of China
- Publication
-
- Author
- Duke. J. A. and Ayensu. E. S.
- Publisher
- Reference Publications, Inc.
- Year
- 1985
- ISBN
- 0-917256-20-4
- Description
- Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
].
The plant contains antitumour compounds[
218- Title
- Medicinal Plants of China
- Publication
-
- Author
- Duke. J. A. and Ayensu. E. S.
- Publisher
- Reference Publications, Inc.
- Year
- 1985
- ISBN
- 0-917256-20-4
- Description
- Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
].
Other Uses
None known
Propagation
Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Division in spring.
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Useful Temperate Plants Database 2016 by
Ken Fern,
web interface by
Ajna Fern
with help from
Richard Morris.
