Herbs, annual. Stems twining, slender, sparsely pubescent. Leaves pinnately 3-foliolate; stipules small, lanceolate, usually 1-2 mm; petiole 1-4 cm, glabrous or sparsely pubescent; stipels extremely small; petiolules extremely short; leaflets ± mem­branous; terminal leaflet rhomboid-circular, 1.5-3 × 1.5-3 cm, sometimes wider than long, glabrous or sparsely villous, abax­ially densely glandular, basal veins 3, apex obtuse or rounded, rarely shortly acute; lateral leaflets subequal to terminal leaflet or shorter, obliquely circular. Raceme 5-11 cm, axis slender, sparsely pubescent; bracts small, lanceolate, deciduous. Flowers 6-8 mm, slightly curved; pedicel extremely short. Calyx ca. 5 mm, sparsely pubescent; lobes lanceolate, slightly shorter than tube, lower one longer. Corolla yellow, longer than calyx, petals subequal; standard obovate-circular, base with 2 acute auricles; wings obovate-elliptic, auriculate; keels slightly curved, apex obtuse. Legume oblanceolate to ellipsoid, 1-2 × 0.4-0.5 cm, pubescent, 1- or 2-seeded. Fl. May-Oct, fr. Sep-Nov. 2n = 22.

Source: [
• 4
]. 

Rhynchosia minima (L.) DC., Prodr. 2: 385. 1825; Dolichos minimus L.

Tallos puberulentos a vellosos. Folíolos ovado-romboides, (1.1–) 2.2–4.5 (–5) cm de largo y (0.8–) 2–4.5 cm de ancho, ápice agudo, base cuneada a obtusa, haz glabra a estrigulosa, envés pubérulo a velloso, peciólulos hasta 2 mm de largo, estipelas ca 1 mm de largo; pecíolos 0.7–6.5 cm de largo, estípulas 3–10 mm de largo, persistentes. Inflorescencias 8–15 cm de largo, pedicelos ca 1 mm de largo, brácteas lanceoladas, ca 1 mm de largo; cáliz 2–4 mm de largo, sin exceder la corola, lobos 1–3 mm de largo; estandarte 5–7 mm de largo y 3–5 mm de ancho, amarillo con estrías purpúreas, con la uña de ca 1 mm de largo, alas 4–5 mm de largo y ca 2 mm de ancho, con la uña de ca 1 mm de largo, quilla 5–6 mm de largo y ca 2 mm de ancho, con la uña de 1–2 mm de largo; estambres 5–7 mm de largo. Frutos ligeramente falcados, ca 1.5 cm de largo y 0.4–0.5 cm de ancho, estrigosos, punteado-glandulares, con rostro ca 1 mm de largo; semillas ovoides, ca 3 mm de largo, manchadas de café-negro, hilo ovado, 0.5–1 mm de largo.

Muy común, en matorrales, orillas de caminos, áreas alteradas, en todo el país; 60–1200 m; fl y fr durante todo el año; Moreno 4887, Robleto 1536; México a Argentina.

Source: [
• 5
]. 

0.3-1.0 cm long, the terminal leaflet with longer petiolule; petiole 1.2-4.0 cm long; strigose; stipels subulate, ca. 1.0 mm long; stipules linear to lanceolate, 3.0- 10.0 mm long, 0.5-1.0 mm wide, persistent, villosulose. Inflorescence equal- ling or exceeding the leaves, 6.8-13.5 cm long, many flowered, the peduncle 1.2- 7.0 cm long, the pedicels ca. 2.0 mm long; bracts lanceolate, ca. 1.0 mm long, caducous. Flowers with the calyx not exceeding the corolla, 2.0-4.0 mm long, the lobes 1.0-3.0 mm long, lanceolate, the upper lobes united part way, puber- ulose, gland dotted; corolla yellow with purplish striations, puberulose, gland dotted, 5.0-7.0 mm long, 3.0-5.0 mm wide, the claw 1.0 mm long, the wings oblong, 4.0-5.0 mm long, 1.75-2.0 mm wide, the claw 1.0 mm long, the keel falcate, 5.0-6.0 mm long, 1.5-2.0 mm wide, the claw 1.0-2.0 mm long; stamens 5.0-7.0 mm long. Fruits oblong, ovate, strigose, gland dotted, 0.9-1.5 cm long, 0.3-0.4 cm wide, the beak 0.5-1.0 mm long; seeds ovoid, brown, black mottled ca. 3.0 mm long, ca. 2.0 mm wide, hilum ovate, 0.5-1.0 mm long, the strophiole lobes narrow.

Source: [
• 6
]. 

Herbaceous to suffrutescent vine; stems angular, puberulent to villosulose. Leaves trifoliolate, the leaflets ovate to ovate rhomboid to orbicular, 2.0-3.8 cm long, 1.0-3.0 cm wide, apically acute, basally cuneate to truncate, glabrous to finely strigulose above, puberulose to villosulose, gland dotted beneath; petiolule

Source: [
• 6
]. 

Ramitas cilíndricas, diminutamente estriadas, corta y retrorsamente pubescentes; estípulas ca. 0.1 cm, deciduas. Hojas con el pecíolo 0.7–6.5 cm; folíolos (1.1–)2.2–4.5(–5) X (0.8–)2–4.5 cm, ovado-rómbicos, agudos en el ápice, cortamente pubescentes a glabrescentes en ambas caras. Infls. 8–15 cm; brácteas ca. 0.1 cm, lanceoladas. Fls. amarillas con líneas púrpura, con el pedicelo ca. 1 mm; cáliz 2–4 mm; pétalos 5–7 mm, el estandarte obovado. Frs. 0.9–1.5(–2) X 0.4–0.5 cm, cortamente pubescentes; semillas pardo grisáceo a negras o moteadas, ca. 3 mm, ovoides.

Source: [
• 7
]. 

Perennial climbing or prostrate herb, with several stems 0.3-several metres long from a woody rootstock. Stems glabrous to velvety. Leaflets 3, 0.9-6 x 0.8-5 cm, rhombic, ovate or suborbicular, the laterals oblique, acuminate, acute or rounded at the apex, cuneate, rounded or truncate at the base, glabrescent to velvety, densely gland-dotted beneath; petiole 0.7-4 cm long; rhachis 2-12 mm long; petiolules 0.5-1.5 mm long; stipules small, 3.5 x 0.5 mm, linear-lanceolate. Inflorescences axillary, usually rather lax; rhachis 2-15 cm long; peduncle 1-7 cm long; pedicels 1-1.5 mm long, or up to 12 mm long; bracts minute, deciduous, 2 x 0.5 mm Calyx pubescent; tube 1-2 mm long; lobes 2-7 mm long, triangular to lanceolate, the lowest mostly the longest, the upper pair joined for from ± half their length to almost their entire length. Standard yellow, sometimes with dark red veins or flushed red, 5-10 x 3-7 mm, obovate, puberulous or pubescent, glandular; wings yellow; keel greenish-yellow. Pods 6-20(25) x 3-5 mm, oblong-falcate, glabrescent or sparsely to densely pubescent and often with longer hairs and glands, 1-2-seeded. Seeds brown, grey or blackish, often speckled, 2.5-3.2 x 2-2.5 x 1.2 mm, oblong-reniform.

Source: [
• 8
]. 

Herbaceous to suffrutescent vine

Source: [
• 6
]. 

Liana/volúvel/trepadeira

Terrícola

nearly cosmopolitan, occurring throughout Mexico and Central America and south into Argentina.

Source: [
• 6
].