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Astragalus aboriginorum

Common name: Indian Milkvetch Family: Leguminosae
Author: Rich. Botanical references: 60
Synonyms: Astragalus australis ((L.)Lam.)
Known Hazards: Many members of this genus contain toxic glycosides[65]. All species with edible seedpods can be distinguished by their fleshy round or oval seedpod that looks somewhat like a greengage.[85] A number of species can also accumulate toxic levels of selenium when grown in soils that are relatively rich in that element[65].
Range: Western N. America - Canada and southwards.
Habitat: Alpine and sub-alpine knolls, scree and open places in valleys and plains, especially on limestone[60].
Edibility Rating (1-5): 2Medicinal Rating (1-5):0

Other Possible Synonyms:From various places across the web, may not be correct. See below.
A. aboriginorum var. fastigiorum[B] A. aboriginorum var. glabriusculus[B,P] A. aboriginorum var. lepagei[B,P] A. aboriginorum var. richardsonii[B,P] A. australis var. glabriusculus[B,P] A. australis var. major[B,P] A. forwoodii[B,P] A. forwoodii var. wallowensis[B,P] A. glabriusculus var. major[B,P] A. linearis[B,P] A. richardsonii[B,P] A. scrupulicola[B,P] Atelophragma aboriginorum[B,P]
Other Common Names:From various places around the Web, may not be correct. See below.
Indian Milk-vetch [B], Indian Milkvetch [P],
Systematics:From a USDA Plants Database
Order: Fabales. Renamed to Fabaceae -- Pea family

Physical Characteristics

Perennial growing to 0.3m. . The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees and Lepidoptera (Moths & Butterflies). It can fix Nitrogen. We rate it 2/5 for edibility and 0/5 for medicinal use.

The plant prefers light (sandy) and medium (loamy) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires dry soil.

Habitats and Possible Locations

Cultivated Beds.

Edible Uses

Root.

Root - cooked[2, 105, 161, 177]. Collected by the Indians in spring as an article of food[235]. This plant is very similar to several poisonous species, so great caution is urged to ensure that the plant is identified properly[213].

Medicinal Uses

Disclaimer

None known

Other Uses

None known

Cultivation details

Requires a dry well-drained soil in a sunny position[1].
Plants are intolerant of root disturbance and are best planted in their final positions whilst still small[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]. Many members of this genus can be difficult to grow, this may partly be due to a lack of their specific bacterial associations in the soil[200].

Propagation

Seed - best sown as soon as it is ripe in a cold frame[200]. A period of cold stratification may help stored seed to germinate[200]. Stored seed, and perhaps also fresh seed, should be pre-soaked for 24 hours in hot water before sowing - but make sure that you do not cook the seed[134, 200]. Any seed that does not swell should be carefully pricked with a needle, taking care not to damage the embryo, and re-soaked for a further 24 hours[134, 200]. Germination can be slow and erratic but is usually within 4 - 9 weeks or more at 13°c if the seed is treated or sown fresh[134]. As soon as it is large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter, planting them out into their permanent positions in late spring or early summer, after the last expected frosts.

Suppliers

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

Web References

References for Astragalus australis (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]).

[2] Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972 ISBN 0-486-20459-6
Lots of entries, quite a lot of information in most entries and references.

[60] Hitchcock. C. L. Vascular Plants of the Pacific Northwest. University of Washington Press 1955
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.

[65] Frohne. D. and Pfänder. J. A Colour Atlas of Poisonous Plants. Wolfe 1984 ISBN 0723408394
Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.

[85] Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press 1967 ISBN 0-8623-0343-9
A superb book. Very readable, it gives the results of the authors experiments with native edible 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.

[134] Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. 1988
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.

[161] Yanovsky. E. Food Plants of the N. American Indians. Publication no. 237. U.S. Depf of Agriculture.
A comprehensive but very terse guide. 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.

[213] Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books 1980 ISBN 0-449-90589-6
A nice book to read though it is difficult to look up individual plants since the book is divided into separate sections dealing with the different medicinal uses plus a section on edible plants. Common names are used instead of botanical.

[235] Britton. N. L. Brown. A. An Illustrated Flora of the Northern United States and Canada Dover Publications. New York. 1970 ISBN 0-486-22642-5
Reprint of a 1913 Flora, but still a very useful book.


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