Herba semiprostrata, ± 35 cm. longa, valde probabiliter e radice lignosa exorta; caules basi sublignosi, pilis patentibus dense obtecti; ramuli floriferi graciles, plerumque subscandentes. Folia trifoliolata, in siccitate ± discoloria; stipulae anguste ovatae, 3-10 mm. longae, 2-4 mm. latae, manifeste nervosae, pilosae; stipellae anguste lanceolatae, 3.5 mm. longae, uninerves; petiolus 1.5-4.5 cm. longus; rhachis ± 2 mm. longa; foliola elliptica usque fere rotundata, 1.5-4 cm. longa, 0.8-3 cm. lata, apice rotundata vel minute retusa, plerumque mucronulata, utrinque pilis mollibus subappressis densis subvelutine obtecta. Inflorescentiae 1-2-florae ad nodos aphyllos ramulorum juvenilium sitae; pedunculi brevissimi vel obsoleti, pedicellis 4-5 mm. longis; bracteolae lanceolatae, 3 mm. longae, persistentes, pubescentes. Calyx patenter pubes-cens; tubus obconicus, 3 mm. longus; lobi triangulares, 2.5-3 mm. longi, 2 superioribus per ± 5/6 longitudinis connatis. Vexillum viridescenti-flavum, obovato-ellipticum, 1-6 cm. longum, 1-2 cm. latum, apice leviter emarginatum, basi leviter auriculatum, intus appendicibus lamelliformibus basi angustatis ornatum. Alae lineari-oblongae, 12-5+ mm. longae, 2-2.5 mm. latae. basi subcalcaratae. Carina leviter curvata, 12+ mm. longa, 3.5 mm. lata, unguiculata, auriculata. Legumina immatura lineari-oblonga, 6.5 cm. longa, 5.5 mm. lata, apice in rostrum curvatum attenuata basi angustata, 5-6-sperma, marginata, glabra, sed juventute minute papilloso-punctata et pilis perpaucis marginata. Semina ignota.
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