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Caragana pygmaea

Common name:   Family: Leguminosae
Author: (L.)DC. Botanical references: 11, 200
Synonyms:  
Known Hazards: None known
Range: E. Asia - China, Himalayas, Siberia
Habitat: Desert land at high altitudes with virtually no rain in the growing season, 3600 - 4800 metres[145, 146].
Edibility Rating (1-5): 2Medicinal Rating (1-5):0

Other Possible Synonyms:From various places across the web, may not be correct. See below.
C. aurantiaca[B,G,H,P] C. pygmaea[H] C. pygmaea [H] Robinia pygmaea[G]
Other Common Names:From various places around the Web, may not be correct. See below.
Dwarf Peashrub [B,P],
Epithets:From a Dictionary of Botanical Epithets
pygmaea = dwarf
Systematics:From a USDA Plants Database
Order: Fabales. Renamed to Fabaceae -- Pea family

Physical Characteristics

A decidious shrub growing to 1.2m. It is hardy to zone 3. It is in flower in May, and the seeds ripen in September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees. It can fix Nitrogen. It is noted for attracting wildlife. We rate it 2/5 for edibility and 0/5 for medicinal use.

The plant prefers light (sandy) and medium (loamy) soils, requires well-drained soil and can grow in nutritionally poor soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires dry or moist soil and can tolerate drought. The plant can tolerates strong winds but not maritime exposure.

Habitats and Possible Locations

Woodland, Sunny Edge.

Edible Uses

Root.

Root - cooked[105]. An emergency food, used when all else fails[177].

Medicinal Uses

Disclaimer

None known

Other Uses

Fuel String.

The shoots are very flexible, they are used like string for tying[11].
The wood is used for fuel[146].

Cultivation details

Prefers full sun and a light sandy dry or very well-drained soil[1, 11, 200]. Does not require a rich soil, succeeding on marginal land[1, 11]. Tolerant of dry alkaline soils.
A very ornamental plant[1], it prefers a continental climate with hot summers and cold winters, it does not grow so well in mild maritime areas such as the western half of Britain.
Plants in this genus are notably resistant to honey fungus[200].
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[200].

Propagation

Seed - best sown as soon as it is ripe in a cold frame[200]. It usually germinates in 2 weeks[K]. Stored seed should be pre-soaked for 24 hours in warm water then sown in a cold frame[78, 113, 200]. If the seed has not swollen then scarify it and re-soak for another 12 hours before sowing[138]. Germination usually takes place within 2 - 3 weeks at 20° c[138]. Good percentage[11]. As soon as they are large enough to handle, prick the seedlings out into individual pots and grow them on in a greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Cuttings of half-ripe wood, 7 - 10cm with a heel, July/August in a frame[113].
Layering in spring.

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

PFAF Web Pages

This plant is mentioned in the following web pages

Web References

References for Caragana aurantiaca (a possible synonym). References for caragana pygmaea (a possible synonym).

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[11] Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981
A classic with a wealth of information on the plants, but poor on pictures.

[78] Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.

[105] Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976
The most comprehensive guide to 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.

[113] Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press 1987 ISBN 0942375009
A very detailed book on propagating trees. Not for the casual reader.

[138] Bird. R. (Editor) Growing from Seed. Volume 3. Thompson and Morgan. 1989
Very readable magazine with lots of information on propagation.

[145] Singh. Dr. G. and Kachroo. Prof. Dr. P. Forest Flora of Srinagar. Bishen Singh Mahendra Pal Singh 1976
A good flora of the western Himalayas but poorly illustrated. Some information on plant uses.

[146] Gamble. J. S. A Manual of Indian Timbers. Bishen Singh Mahendra Pal Singh 1972
Written last century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.

[177] Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984 ISBN 3874292169
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.


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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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