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Robinia luxurians

Common name:   Family: Leguminosae
Author: (Dieck.)Schneid. Botanical references: 11, 82, 200
Synonyms: Robinia neomexicana luxurians (Dieck.)
Known Hazards: None known
Range: South-western N. America - New Mexico.
Habitat: Banks of mountain streams to elevations of 2100 metres[82].
Edibility Rating (1-5): 1Medicinal Rating (1-5):0

Other Possible Synonyms:From various places across the web, may not be correct. See below.
R. neomexicana var. luxurians[B,P] R. neomexicana var. neomexicana[B,G,P] R. neomexicana var. subvelutina[B,P]
Other Common Names:From various places around the Web, may not be correct. See below.
New Mexico Locust [P],
Epithets:From a Dictionary of Botanical Epithets
luxurians = luxuriant
Systematics:From a USDA Plants Database
Order: Fabales. Renamed to Fabaceae -- Pea family

Physical Characteristics

A decidious tree growing to 8m. It is hardy to zone 5. It is in flower from July to August. The scented flowers are hermaphrodite (have both male and female organs). It can fix Nitrogen. We rate it 1/5 for edibility and 0/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and can grow in nutritionally poor soil. The plant prefers acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It requires dry or moist soil and can tolerate drought. It can tolerate atmospheric pollution.

Habitats and Possible Locations

Woodland, Secondary.

Edible Uses

Flowers.

Flowers - raw[105].

Medicinal Uses

Disclaimer

None known

Other Uses

Soil stabilization Wood.

Plants succeed in dry barren sites, their suckering habit making them suitable for stabilizing banks[200].
Wood - heavy, exceedingly hard, strong, close-grained[82].

Cultivation details

Succeeds in any soil, preferring one that is not too rich[1, 200]. Requires a well-drained soil, succeeding on dry barren sites[200]. Plants are tolerant of drought and atmospheric pollution[200]. Succeeds in a hot dry position.
The branches are brittle and very liable to wind damage[200]. When plants are grown in rich soils they produce coarse and rank growth which is even more liable to wind damage[11, 200].
Any pruning should be done in late summer in order to reduce the risk of bleeding[200].
Plants in this genus are notably resistant to honey fungus[200].
The flowers are fragrant[245].
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 - pre-soak for 48 hours in warm water and sow the seed in late winter in a cold frame[80]. A short stratification improves germination rates and time[80]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in the following summer. The seed stores for over 10 years[113].
Suckers taken during the dormant season.

Scent

Flowers: Fresh
The flowers are fragrant[245].

Suppliers

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

Web References

References for Robinia neomexicana var. neomexicana (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

[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.

[80] McMillan-Browse. P. Hardy Woody Plants from Seed. Grower Books 1985 ISBN 0-901361-21-6
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.

[82] Sargent. C. S. Manual of the Trees of N. America. Dover Publications Inc. New York. 1965 ISBN 0-486-20278-X
Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader.

[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.

[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.

[245] Genders. R. Scented Flora of the World. Robert Hale. London. 1994 ISBN 0-7090-5440-8
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.


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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
WEB search engine by Rich Morris - Home Page- Contact Info
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