Rhynchosia minima (L.) DC. [Familia Fabaceae]

Descripción y datos generales

Publicación original

L. (1825). Prodr., 2, 385.

Status

Nativa

Hábito

Enredadera

Ciclo de vida

Perenne

Descripción morfológica

Vine herbaceous or suffrutescent, twining or prostrate, stems branched, pilose to pubescent, indumentum white to light yellow, with yellow to light brown vesicular glands, but lacking bulbous-based trichomes. Stipules 1.5–5 × 0.5–1.5 mm, free, persistent, narrowly lanceolate to lanceolate, externally pilose to pubescent with yellow vesicular glands, but lacking bulbous-based trichomes. Leaves trifoliolate; petiole 0.7–6 cm long; leaf rachis 0.5–1.5 cm long; stipels persistent to falling late; leaflets 1.5–7 × 1–5 cm, ovate, deltoid, rhombic or elliptical, surface not bullate, attenuate to acuminate at apex, truncate, obtuse or rounded at base, margin entire, pilose to pubescent, with yellow vesicular glands on both surfaces. Inflorescences axillary, racemose, 4–21.9 cm long, many-flowered, exceeding the length of the subtending leaf; bracts caducous; pedicels 0.5–2.5 mm long. Flowers 3–8 mm long excluding the pedicel; calyx 2–5 mm long, pubescent with yellow vesicular glands, but lacking bulbous-based trichomes, lobes lanceolate, not exceeding the corolla in length; standard petal 4–7 × 3–5 mm, obovate to rounded, emarginate or rounded at apex, villous or pilose to pubescent, with yellow vesicular glands, but lacking bulbous-based trichomes, claw 0.5–1.5 mm long, auricle ca. 0.5 mm long; wing petals 4–6 × 0.5–1 mm, oblong, claw 1–1.5 mm long, auricle ca. 0.5 mm long; keel petals 4–7 × 0.5–1 mm, falcate, claw 1–2 mm long; stamens 4–7 mm long; ovary 2.2–2.8 mm long, densely pubescent, with yellow vesicular glands. Fruits 0.7–2.3 × 0.5–0.8 cm, brownish to blackish, without constrictions between the seeds, falcate, pilose to pubescent with yellow vesicular glands, but lacking bulbous-based trichomes. Seeds 2–4 × 2–3 mm, ovate or reniform, unicolored, brown to black.

Material tipo

Basónimo: Dolichos minimus L.

Distribución

Distribución por país

Sinonimia (8 sinónimos)

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Referencias bibliográficas por País

Vouchers — Ejemplares examinados

Colecciones de referencia

Registros de herbario determinados actualmente con este nombre.

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Estado de conservación