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(Last Modified On 9/25/2013)
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(Last Modified On 9/25/2013)
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Species
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Crotalaria incana L.
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PlaceOfPublication
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Sp. P1. 716. 1753.
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Note
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TYPE: Lectotype, Jamaica, Herbarium Sloane, Vol. 6, fol. 6 (BM).
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Synonym
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Crotalaria purpurescens Lam., Encyl. M&th. Bot. 2: 200. 1786 (fide Baker, 1914). TYPE: Madagascar, collector unknown (P-LAM). Crotalaria pubescens Moench., Encyl. Math. Bot. 161. 1794. Superfluous when published. TYPE: Not seen. Crotalaria glabrescens Andersson, Kongl. Svenska. Vetensk. Acad. Handl. 1853: 248. 1855, non Benth., 1843. TYPE: Galapagos, locis graminosis regionis mediae insulae Chatham, Andersson 222 (P). Crotalaria picensis Philippi, Anales Mus. Nac. Montevideo 13, 1891. TYPE: Chile: Pica, ? Philippi II 1885 (SGO 39857).
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Description
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Herb or small shrub, less than 1 m (-2 m) tall, stem terete, puberulous to pilose. Leaves trifoliolate, the terminal leaflets elliptic or obovate, apex rounded, mucronate or mucronulate, the base cuneate 1.8-6.0 cm long, 1.1-3.7 cm broad, the margins entire, above glabrous, strigose or pilose, beneath glabrous to pilose or villous, the veins 6-9 on each side of the midvein, the lateral leaflets similar, but slightly smaller; petiole 2-7 cm long; stipules caducous. Inflorescences ter- minal or sub-terminal racemes bearing 7-11 flowers; bracts setaceous and curly, deciduous before anthesis; pedicels 1.8-2.0 mm long; bracteoles narrowly trian- gular ca. 2 mm long, pilose, located on the top of the pedicel, caducous. Flowers yellow, 11-15 mm long; calyx 7.5-10.0 mm long, the tube campanulate, the lobes 2.5-3.0 times as long as the tube, pilose; corolla yellow, 10-13 mm long, the standard 11-14 mm long, 10-13 mm broad, retuse, the wings 10-13 mm long, the claws 1.5-1.9 mm long, oblong, oblique, the keel 12 mm long, the non-twisted beak short; stamens dimorphic, the long anthers 1.3-1.8 mm long, the short anthers 0.5-0.6 mm long; style with pubescent stigma, geniculate, 7.0-8.3 mm long. Legume inflated, 2.5-3.5 cm long, pilose, brown at maturity; seeds ca. 33, brown, oblique cordiform, to 3.0 mm long.
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Habit
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Herb or small shrub
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Note
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Crotalaria incana is a common tropical weed inhabiting cultivated fields, road- sides, and waste places. It is characterized by its short calyx tube and long lobes and its pilose to villous fruits. Leaflets on this species are frequently folded at pressing time, a character not shared with other Panamanian species. Standley (1928) listed "frijolillo" as the only Panamanian common name for C. incana, but he reported five common names for the species in Salvador: "chinchin," "chipilin macho," "chipilin," "chilpilin de zope," and "chilpilin de venado. "
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Common
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frijolillo chinchin
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Common
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chipilin macho chipilin
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Common
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chilpilin de zope chilpilin de venado
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Specimen
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BOCAS DEL TORO: Bocas, along runway, Lazor et al. 2433 (FSU). CANAL ZONE: Culebra Island, Duke 4619 (MO). Gatun, Cowell 312 (NY). Farfan Beach, Blum & Godfrey 1678 (FSU, SCZ). Howard Air Force Base near Red Devil drop zone, Tyson 1852 (MO, SCZ). La Boca, Mori & Kallunki 3679 (MO). Miraflores Locks area, Tyson 1602 (FSU, SCZ). Panama City, Macbride 2623 (F); Mendez 113 (MO). Near Playa Venado, Wilbur & Teeri 1297 (DUKE). HERRERA: Salinas de Chitre, Croat 9689 (MO, NY); D'Arcy & Croat 4161 (MO). SAN SANTOS: 7 mi S of Chitre, Croat 9702 (MO). Santa Ana, Duke 12474 (MO, NY). PANAMA: Nueva Gorgona near beach, Duke 4501 (MO). Taboga Island, Allen 142 (GH); Dwyer 2814 (FSU, MO); Hunter & Allen 142 (MO).
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