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Useful Tropical Plants

Crotalaria cobalticola

P.A.Duvign. & Plancke

Fabaceae

+ Synonyms

Common Name:

No Image.

General Information

Crotalaria cobalticola is an erect annual plant with a slender stem that is much-branched from the base; it can grow 30 - 60cm tall[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].
The plant is found especially on soils rich in cobalt and copper. It is seen as an indicator of potential deposits of these metals in the soil[
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.
].
Crotalaria cobalticola has a very restricted natural range and is strictly endemic to copper-rich soil (i.e., it is an absolute metallophyte). However, even if its natural habitat is being destroyed by mining activities, this species is able to colonize secondary metalliferous habitats, such as substrate disturbed and reworked by the mining industry (often mine debris). 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

No specific mention of toxicity has been seen for this species, but many members of this genus are known to contain pyrrolizidine alkaloids, the most potent of which in this genus are monocrotaline, retrorsine and retronecine[
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.
]. These alkaloids have a cumulative effect upon the body and, unless concentrations in a plant are high, occasional consumption is generally completely safe. Pyrrolizidine alkaloids are derived from amino acids including ornithine. Many of these alkaloids have pronounced hepatic toxicity, but the lungs and other organs may be affected as well. Mutagenic and carcinogenic activities of pyrrolizidine alkaloids have also been reported[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Botanical References


Range

Tropical Africa - southern DR Congo

Habitat

In grassy places with Eragrostis boehmii on highly metalliferous soils, often in a disturbed zone at the base of hills; contents of cobalt in the soil 400 - 1,900 ppm[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].

Properties

Conservation StatusLeast Concern
Other Uses Rating *  *  *
HabitAnnual
Height0.50 m
PollinatorsInsects
Cultivation StatusWild

Cultivation Details


Annual and short-lived perennial plants in this genus generally gow best in a sunny position, succeeding in most dry to moist, well-drained soils[
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.
].
We have no specific report for this species, but most species in this genus have 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[
755
Title
Nodulation Plants in GRIN Taxonomy
Publication
 
Author
 
Website
http://www.ars-grin.gov/~sbmljw/cgi-bin/taxnodul.pl?language=en
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database listing plants that have either positive or negative reports on root and stem nodulation with nitrogen-fixing bacteria.
].

Edible Uses

None known

Medicinal

None known

Agroforestry Uses:

The plant is restricted to soils rich in copper and cobalt. As such, it is seen as an indicator of copper and cobalt deposits. In addition, because it grows vigorously and also concentrates these metals in its above ground parts, it is an effective hyperaccumulator and can be used in phytoremediation projects[
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.
].
Ashes of the plant (2% of dry weight) growing in a soil containing 1,900 ppm cobalt were found to contain 17,700 ppm cobalt and 530 ppm copper[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
]. The species seems not to be restricted to metalliferous soils but is tolerant to them[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].

Other Uses

None known

Propagation

Seed - sow in situ. Pre-soaking the seed for 12 hours in warm water can help to reduce germination time.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2020-08-08. <tropical.theferns.info/viewtropical.php?id=Crotalaria+cobalticola>

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