Najas marina
Spiny Naiad
a perennial member of the Najas genus in the family Najadaceae.
Taxonomy and growth
- Family
- Najadaceae
- Genus
- Najas
- Life cycle
- perennial
- Fertility
- Water
- Flower type
- dioecious
- Pollinators
- Water
Uses
Edible uses
This section contains historical Plants For A Future notes marked noncommercial.
- Plant part
- Leaves
Environment
- Range
- Cosmopolitan, found in most areas of the world, including Britain, but absent from colder regions.
- Habitat
- Fresh or brackish water[5].
- Light
- full sun
- Shade tolerance
- light shade
- Water
- aquatic
- Soil textures
- sandy, loamy, clay
- Soil pH
- acid, neutral, alkaline
- Tolerates Nutritionally Poor Soil
- No
- Drought
- intolerant
- Salinity
- tolerant
Propagation
This section contains historical Plants For A Future notes marked noncommercial.
Seed - we have no information on this species but suggest sowing the seed in situ as soon as it is ripe if this is possible. Otherwise store the seed in water in a cool place and sow it in situ in the spring. Division in the growing season[2].
Cultivation
This section contains historical Plants For A Future notes marked noncommercial.
A submerged water plant, succeeding in shallow fresh or brackish water[2]. This is one of the few genera of plants where fertilization takes place under the surface of the water[3]. Dioecious, male and female plants must be grown if seed is required[3].
References
Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00
Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5
Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J Illustrated Flora of North Central Texas Botanical Research Institute, Texas. 1999-00-00 http://artemis.austincollege.edu/acad/bio/gdiggs/NCTXpdf.htm
Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959-00-00
? Flora Europaea Cambridge University Press 1964-00-00
Usher. G. A Dictionary of Plants Used by Man. Constable 1974-00-00 ISBN 0094579202