Rhynchosia minima (Flora of the WAP complex

Rhynchosia minima

Summary ⁵

Rhynchosia minima is a species of flowering plant in the legume family known by the common names least snout-bean, burn-mouth-vine, and jumby bean. It can be found on every continent. It is naturalized in Hawaii.

Diagnostic description ⁶

Rhynchosia minima (L.) Dc., Prodr. 2: 385. 1825.

Fig. 111. E-H

Basionym: Dolichos minimus L.

Synonyms: Rhynchosia minima var. lutea Eggers

Rhynchosia minima var. pauciflora Kuntze

Dolicholus minimus (L.) Medic.

Non-woody vine, twining, attainig 1-4 m in length. Stems slender, densely pubescent, striate, cylindrical, with numerous resinous dots in the furrows. Leaves alternate, trifoliolate, chartaceous; margins entire, slightly revolute; upper surface dull, glabrous or white-pubescent, especially on the veins, with numerous orange resinous dots; lower surface pale green, glabrous, puberulent or pubescent, with minute orange resinous dots and the primary and secondary venation prominent; terminal leaflet rhombic, 0.9-2.8(7.5) × 0.6-2.8(6.3) cm, the apex acute or obtuse, the base cuneate; lateral leaflets asymmetrical, elliptical-ovate, slightly smaller than the terminal leaflet, the base obtuse; petiolules densely pubescent, 1-1.5 mm long; petiole striate, densely pubescent, 1.5-2 cm long; stipules subulate, 2-2.5 mm long, densely pubescent; stipels subulate, ca. 3 mm long. Inflorescence a raceme, as long as or longer than the leaves. Calyx green, the lobes lanceolate, 2-3 mm long; corolla yellow with purple or brown venation, the standard 5 mm long, orbicularovate; wings oblong, unguiculate, 4-5.5 mm long, with resinous dots. Legume falcate to oblongovate, flattened, minutely villous, 9-20 × 3-5 mm, with a beak at the apex. Seeds 2-3, ovate-reniform, dark brown to almost black, 3-4 mm long.

Phenology: Flowering and fruiting throughout the year.

Status: Probably exotic, naturalized, very common.

Selected Specimens Examined: Acevedo-Rdgz., P. 1957; 2337; 3921; 5374; 5398; 7222; 7776; 11274; Britton, N.L. 1857; Goll, G.P. 574; 733; Heller, A.A. 32; 4571; 6288; Johnston, J.R. 1157; Sargent, F.H. 587; Shafer, J.A. 2484; Sintenis, P. 117; 3140; 3888; 5493; Stevenson, J.A. 1157; 1351; Underwood, L.M. 212; 712.

Sources and Credits

(c) krancmm, some rights reserved (CC BY-NC), uploaded by krancmm
no rights reserved, uploaded by Jesse Rorabaugh
(c) Andy Newman, some rights reserved (CC BY-NC), uploaded by Andy Newman
(c) Chuck Sexton, some rights reserved (CC BY-NC), uploaded by Chuck Sexton
(c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Rhynchosia_minima
(c) Pedro Acevedo-Rodríguez, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28435391

More Info

Range Map

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