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Useful Temperate Plants

Astragalus crotalariae

(Benth.) A.Gray

Fabaceae

+ Synonyms

Phaca crotalariae Benth.

Astragalus limatus E.Sheld.

Astragalus preussii A.Gray

Tragacantha crotalariae (Benth.) Kuntze

Common Name: Salton Milkvetch

No Image.

General Information

Astragalus crotalariae is a bushy perennial plant
The plant is used as an indicator of selenium deposits and is also a hyperaccumulator that can potentially remove selenium from polluted soils.
Astragalus crotalariae is a perennial herb for which at present there are no major known threats causing a population decline, but it is generally recorded as rare in its natural range. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

None known

Botanical References


Range

Southwestern N. America - California, Arizona, northern Mexico (Baja Norte)

Habitat

Sandy, gravelly areas in desert scrub, arid plains and washes, disturbed areas such as roadsides; at elevations from 60 - 250 metres[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Properties

Conservation StatusLeast Concern
Other Uses Rating *  *
HabitPerennial
Height0.00 m
PollinatorsInsects
Cultivation StatusWild

Cultivation Details

Astragalus crotalariae is native to arid and semi-arid regions of southwestern N. America where it is found at elevations below 250 metres. The summers are hot and the winters can bw very cold, with temperatures falling below freezing.
Requires a sunny position in a well-drained soil. Succeeds in poor soils.

Edible Uses

None known

Medicinal

None known

Agroforestry Uses:

Astragalus crotalariae is often found growing on selenium-rich soils and, when growing well, is believed to indicate the presence of selenium deposits. It has thus been used as an indicator plant of potential sites for mining selenium[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
,
1309
Title
The Leguminosae; A Source Book of Characteristics, Uses and Nodulation
Publication
 
Author
Allen O.N.; Allen E.K.
Publisher
University of Wisconsin
Year
1981
ISBN
0-333-32221-5
Description
An amazing and comprehensive work, giving a brief guide to the many genera of the family Fabaceae and also the principle uses of the genus.
].
The plant also accumulates high levels of selenium in its foliage and has potential for use in removing selenium from contaminated soil by cutting and removing the foliage on a regular basis. The selenium is potentially recoverable from the foliage[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
,
1309
Title
The Leguminosae; A Source Book of Characteristics, Uses and Nodulation
Publication
 
Author
Allen O.N.; Allen E.K.
Publisher
University of Wisconsin
Year
1981
ISBN
0-333-32221-5
Description
An amazing and comprehensive work, giving a brief guide to the many genera of the family Fabaceae and also the principle uses of the genus.
].

Other Uses

None known

Propagation

Seed - best sown as soon as it is ripe in a cold frame[
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.
]. A period of cold stratification may help stored seed to germinate[
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.
]. 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
Title
Growing from Seed. Volume 2.
Publication
 
Author
Rice. G. (Editor)
Publisher
Thompson and Morgan.
Year
1988
ISBN
-
Description
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.
,
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.
]. 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
Title
Growing from Seed. Volume 2.
Publication
 
Author
Rice. G. (Editor)
Publisher
Thompson and Morgan.
Year
1988
ISBN
-
Description
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.
,
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.
]. 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
Title
Growing from Seed. Volume 2.
Publication
 
Author
Rice. G. (Editor)
Publisher
Thompson and Morgan.
Year
1988
ISBN
-
Description
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.
]. 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.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2020-09-30. <temperate.theferns.info/plant/Astragalus+crotalariae>

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