Trapa incisa
Siebold & Zucc.
Lythraceae
Some botanists regard this species as no more than a part of the one highly polymorphic species Trapa natans[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Modern treatments generaly see this taxon as Trapa natans[
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.
].
Trapa bispinosa incisa (Siebold & Zucc.) Franch. & Sav.
Trapa incisa quadricaudata Glück
Trapa maximowiczii Korsh.
Trapa natans incisa (Siebold & Zucc.) Makino
Common Name:
Plant growing in shallow water
Photograph by: Show_ryu
Public domain
Plant growing in shallow water
Photograph by: Show_ryu
Public domain
Trapa incisa nuts
Photograph by: Show_ryu
General Information
Trapa incisa is an annual, aquatic plant, floating in shallow water by means of inflated petioles[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Plants are sometimes cultivated for their edible seeds[
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.
].
Known Hazards
We have no specific information for this species, but the raw seed of several members of this genus contains toxins. However, these are destroyed in the cooking process[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
206- Title
- Oriental Vegetables
- Publication
-
- Author
- Larkcom J.
- Publisher
- John Murray
- Year
- 1991
- ISBN
- 0-7195-4781-4
- Description
- Well written and very informative.
].
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 - southern China, Japan, Korea, India, Malaysia, Indo-China.
Habitat
Lakes and ponds in central and southern 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.
]. Swamps and ponds from near sea level to 1,000 metres, occasionally to 2,000 metres in southern China[
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.
].
Properties
| Edibility Rating |  |
| Habit | Annual |
| Height | 0.00 m |
| Cultivation Status | Cultivated, Wild |
Cultivation Details
Plants require a high summer temperature in order to perform well, they are not frost hardy[
206- Title
- Oriental Vegetables
- Publication
-
- Author
- Larkcom J.
- Publisher
- John Murray
- Year
- 1991
- ISBN
- 0-7195-4781-4
- Description
- Well written and very informative.
].
Succeeds in still or slowly-flowing water requiring a position in full sun and a slightly acidic water with a rich planting medium[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Edible Uses
Seed - cooked. Boiled[
2- Title
- Sturtevant's Edible Plants of the World.
- Publication
-
- Author
- Hedrick. U. P.
- Publisher
- Dover Publications
- Year
- 1972
- ISBN
- 0-486-20459-6
- Description
- Lots of entries, quite a lot of information in most entries and references.
,
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
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.
]. Some caution is advised, see the notes above on toxicity.
Medicinal
None known
Other Uses
None known
Propagation
Seed - harvest in late summer and store overwinter in a jar of water in a cold but frost-free place. The seed quickly loses its vitality if it is allowed to become dry. Sow in spring, placing one seed in each pot and submerging them under a few centimetres of water.
If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.
Useful Tropical Plants Database 2014 by
Ken Fern,
web interface by
Ajna Fern
with help from
Richard Morris.
