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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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Centrosema plumieri (Pers.) Benth.
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PlaceOfPublication
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Comm. Legum. Gen. 54. 1837.
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Synonym
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Clitoria plumieri Pers., Syn. P1. 2: 303. 1807. Based on Phaseolus ampla flore .... Plumier. Descr. P1. Amer. 5: 108. 1713 [1693]. TYPE: Plumier's illustration, based on a Plumier collection from Port-de-Paix, Hispaniola.
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Description
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Robust twining vine; stems pubescent just above the nodes, otherwise often glabrate. Leaves pinnate trifoliolate, leaflets broadly ovate to rhombic 5-9(-15) cm long, sharply short acuminate, basally obtuse or cuneiform, shiny and glabrate above except on the midvein, copiously appressed pubescent beneath with straight white hairs; petiolules 3-4 mm long, drying dark, glabrate except tomen- tose ventrally; rachis and petiole drying with a conspicuous dorsal groove near the ends, glabrate to pilose; rachis 10-25 mm long, petiole mostly shorter than the terminal leaflet; stipels subulate, exceeding the petiolules, stipules obtuse, ca. 5 mm long, conspicuously striate, ciliolate. Inflorescence axillary, few flowered; peduncles stiff, drying dark, 2-10 cm long; bracts caducous; bracteoles 2, inserted at the top of the pedicel, spathaceous, 10-20 mm long, conspicuously nervate, apically ciliolate, often drying dark; pedicels 6-10 mm long. Flowers showy; calyx cupular, 4-6 mm long, the teeth undulate except for the slightly longer lowest tooth, glabrate; standard orbicular, emarginate, nearly flat, 5-6 cm across, white outside, purple inside, pubescent outside, wings and keel purple. Legume linear, flat, 10-14 cm long, ca. 10 mm wide, thick margined, mostly drying black, glabrate; seeds ellipsoidal, rhomboidal, 6-9 mm long, dark brown, the hilum along one corner.
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Habit
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vine
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Note
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This species is distinct in its broad, sharp pointed leaves and in its large showy flowers which are contrasting white and purple. The pod is larger than other Panamanian species of Centrosema, and the margins are much broader. The appressed pubescence of the leaf undersides is also distinctive when present.
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Distribution
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ranges throughout tropical America and is introduced to the Old World. In Panama it occurs mainly in moist forest areas.
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Specimen
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BOCAS DEL TORO: Rio Teribe just below Puerto Palenque, Kirkbride & Duke 547 (MO). Almirante, Sharp 11 Nov. 62 (SCZ). Water Valley, Wedel 1629 (GH, MO, US), 1753 (GH, US). CANAL ZONE: Tabernilla, Cowell 269 (NY). Road to Contractors' Hill, Dwyer 4004 (MO). Cocoli, Dwyer 7203 (GH, MO), 7218 (GH). Gamboa, Greenman & Greenman 5166 (MO). Observatory on Gamboa Road, Hladik 235 (MO). Pedro Miguel, Killip 3346 (US). Summit, Lindsay 413 (MO). Chiva Chiva Trail, Red Tank to Pueblo Nuevo, Piper 5178 (US). Between Miraflores and Corozal, Pittier 2194 (NY, US). Gamboa, Pittier 6517 (GH, NY, US). Old Las Cruces trail between Fort Clayton and Corozal, Standley 29006 (US). COCLi: Mountains beyond La Pintada, 400-600 m, Hunter & Allen 555 (GH, MO). 1-5 mi S of Ant6n on road to coast, Tyson & Blum 2577 (FSU, MO, SCZ). DARIEN: Santa Fe, Duke 9480 (MO, US). LOS SANTOS: Playa de Concepci6n, Burch et al. 1268 (GH, MO, US). Between Tonosi and Macaracas, Oliver et al. 3553 (MO). 12 mi S of Macaracas, Tyson et al. 2935 (FSU, MO, SCZ). PANAMA: Sea beach from Panama Viejo to Bella Vista, Allen 829 (F, GH, MO). Without other locality, Kennedy 2014 (F). Matias Hernindez, Pittier 6884, 6897 (both US). Juan Diaz, Standley 30473 (US). Between Matias Herndndez and Juan Diaz, Standley 31934 (US). SAN BLAS: Rio Carti, Kennedy et al. 2014 (MO); Perrin 1967 (MO). Between Rio Pialla and Rio Ailigandi, Warner 190 (MO).
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