Canavalia
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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
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
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
The genus name Canavalia was, as recently as 1913, known as Canavali.[5] The name of the genus comes from a common name for Canavalia rosea used in India and adapted by Augustin Pyramus de Candolle.[6]
Diversity
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Species include:[7]
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- Canavalia acuminata Rose
- Canavalia africana Dunn
- Canavalia altipendula (Piper) Standl.
- Canavalia aurita J.D. Sauer
- Canavalia bicarinata Standl.
- Canavalia boliviana Piper
- Canavalia bonariensis Lindl.
- Canavalia brasiliensis Mart. ex Benth.[8] – Barbicou-bean, feijão-bravo do Ceará (Brazil)
- Canavalia campylocarpa Piper
- Canavalia cathartica Thouars (syn. C. virosa (Roxb.) Wight & Arn.)
- Canavalia centralis H.St.John
- Canavalia concinna J.D.Sauer
- Canavalia dolichothyrsa G.P. Lewis
- Canavalia dura J.D. Sauer
- Canavalia ensiformis (L.) DC. – common jack-bean, giant stock-bean, gotani-bean, horse-bean, seaside-bean, wonder-bean, feijão-de-porco (Brazil)
- Canavalia eurycarpa Piper
- Canavalia forbesii H.St.John
- Canavalia galeata (Gaudich.) Vogel[9] (Oʻahu)[10]
- Canavalia glabra (M. Martens & Galeotti) J.D.Sauer
- Canavalia gladiata (Jacq.) DC. – sword bean, scimitar-bean
- Canavalia grandiflora Benth.
- Canavalia haleakalaensis H.St.John
- Canavalia hawaiiensis O.Deg., I.Deg. & J.D.Sauer[9]
- Canavalia hirsutissima J.D. Sauer
- Canavalia iaoensis H.St.John
- Canavalia kauaiensis J.D.Sauer[9]
- Canavalia lineata (Thunb.) DC.
- Canavalia macrobotrys Merr.
- Canavalia macropleura Piper
- Canavalia madagascariensis J.D.Sauer
- Canavalia makahaensis H.St.John
- Canavalia mattogrossensis (Barb. Rodr.) Malme
- Canavalia matudae J.D. Sauer
- Canavalia microsperma Urb.
- Canavalia mollis Wight & Arn.
- Canavalia molokaiensis O.Deg., I.Deg. & J.D.Sauer[9] – Molokaʻi jack-bean
- Canavalia munroi (O.Deg. & I.Deg.) H.St.John
- Canavalia napaliensis H.St.John[9] – Mākaha Valley jack-bean
- Canavalia nitida (Cav.) Piper – Cathie's bean
- Canavalia nualoloensis H.St.John
- Canavalia obidensis Ducke
- Canavalia oxyphylla Standl. & L.O. Williams
- Canavalia palmeri (Piper) Standl.
- Canavalia papuana Merr. & L.M. Perry
- Canavalia parviflora Benth.
- Canavalia peninsularis H.St.John
- Canavalia picta Benth.
- Canavalia piperi Killip & J.F.Macbr.
- Canavalia plagiosperma Piper – giant bean, oblique-seed jack-bean
- Canavalia pubescens Hook. & Arn.[9] – lavafield jack-bean
- Canavalia raiateensis J.W. Moore
- Canavalia ramosii J.D. Sauer
- Canavalia regalis Piper & Dunn
- Canavalia rockii H.St.John
- Canavalia rosea (Sw.) DC. – bay bean, beach-bean, coastal jack-bean, fire-bean, Mackenzie-bean
- Canavalia rutilans DC.
- Canavalia sanguinea H.St.John
- Canavalia saueri Fantz
- Canavalia septentrionalis J.D. Sauer
- Canavalia sericea A. Gray
- Canavalia sericophylla Ducke
- Canavalia stenophylla H.St.John
- Canavalia villosa Benth.
Formerly placed here
- Dysolobium grande (Wall. ex Benth.) Prain (as C. grandis (Wall. ex Benth.) Kurz)[8]
Gallery
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See also
- Thierry Bardini - researched Venezuelan jack-bean agriculture early in his career
References
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- ↑ a b Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
- ↑ <templatestyles src="smallcaps/styles.css"/>Pukui, M. K., et al. (1992): New Pocket Hawaiian Dictionary with a Concise Grammars and Given Names in Hawaiian. University of Hawaii PRess, Honolulu. Template:ISBN
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- ↑ Piper, C. V. 1913. "The Jack Bean and the Sword Bean." USDA Bureau of Plant Industry, Circular. No. 110. p. 29-36
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- ↑ Genus Canavalia. Template:Webarchive International Legume Database & Information Service (ILDIS). Version 10.01, November 2005. Retrieved 17 December 2007.
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External links
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- International Plant Names Index: Canavalia taxa database.
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