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Canavalia

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Canavalia
Canavalia sericea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Diocleae
Genus: Canavalia
DC.[1]
Species[1]

62; see text

Synonyms[1]
  • Canavali Adans. (1763), nom. rej.
  • Clementea Cav. (1804)
  • Cryptophaeseolus Kuntze (1891)
  • Malocchia Savi (1824)
  • Wenderothia Schltdl. (1838)

Canavalia is a genus of plants in the legume family (Fabaceae) that comprises approximately 62 species of tropical vines.[1] Members of the genus are commonly known as jack-beans. It has a pantropical distribution.[1]

The species of Canavalia endemic to the Hawaiian Islands were named ʻāwikiwiki by the Native Hawaiians. The name translates to "the very quick one"[2] and comes from the Hawaiian word for "fast". The genus name is derived from the Malabar word for the species, kavavali, which means "forest climber."[3]

Uses

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Several species are valued legume crops, including common jack-bean (C. ensiformis), sword bean (C. gladiata) and C. cathartica. At least the first makes a beneficial weed- and pathogen-suppressing living mulch.[4] The common jack-bean is also a source of the lectin concanavalin A, which is used as a reagent in glycoprotein biochemistry and immunology. The jack-bean is also a common source of purified urease enzyme used in scientific research.

The bay bean (Canavalia rosea) is supposedly mildly psychoactive when smoked, and is used in tobacco substitutes.

Ecology

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Some animals have adaptations to the defensive chemicals of jack-beans. Caterpillars such as that of the two-barred flasher (Astraptes fulgerator) are sometimes found on Canavalia. The plant pathogenic ascomycete fungus Mycosphaerella canavaliae was described from a jack-bean. Introduced herbivores have wreaked havoc on Canavalia on the Hawaiian Islands and made some nearly extinct; it may be that these lost their chemical defenses because no herbivorous mammals existed in their range until introduced by humans. The usually bright pea-flowers are pollinated by insects such as solitary bees and carpenter bees such as Xylocopa confusa.

History

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The genus name Canavalia was, as recently as 1913, known as Canavali.[5]

Diversity

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Canavalia cathartica illustration. Francisco Manuel Blanco, Flora de Filipinas, etc. (1880-1883)
Canavalia lineata

Species include:[6]

Formerly placed here

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See also

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References

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  1. ^ a b c d e Canavalia DC. Plants of the World Online. Retrieved 14 August 2023.
  2. ^ Pukui, M. K., et al. (1992): New Pocket Hawaiian Dictionary with a Concise Grammars and Given Names in Hawaiian. University of Hawaii PRess, Honolulu. ISBN 0-8248-1392-8
  3. ^ Austin, D. F. (2004). Florida Ethnobotany. CRC Press. p. 161. ISBN 978-0-8493-2332-4.
  4. ^ Caamal-Maldonado, J. A.; et al. (2001). "The use of allelopathic legume cover and mulch species for weed control in cropping systems". Agronomy Journal. 93 (1): 27–36. Bibcode:2001AgrJ...93...27C. doi:10.2134/agronj2001.93127x. Archived from the original on 2014-05-25. Retrieved 2013-08-29.
  5. ^ Piper, C. V. 1913. "The Jack Bean and the Sword Bean." USDA Bureau of Plant Industry, Circular. No. 110. p. 29-36
  6. ^ Genus Canavalia. Archived 2014-05-17 at the Wayback Machine International Legume Database & Information Service (ILDIS). Version 10.01, November 2005. Retrieved 17 December 2007.
  7. ^ a b "GRIN Species Records of Canavalia". Germplasm Resources Information Network. United States Department of Agriculture. Archived from the original on 2009-01-20. Retrieved 2010-12-03.
  8. ^ a b c d e f "ʻawikiwiki, puakauhi". Hawaiian Ethnobotany Database. Bernice P. Bishop Museum. Archived from the original on 2007-07-02. Retrieved 2009-03-26.
  9. ^ "Canavalia galeata". Hawaiian Native Plant Propagation Database. University of Hawaiʻi at Mānoa. Retrieved 2009-03-26.
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