Herbs, 7-15 cm tall, acaulescent or shortly caulescent, from a multiheaded caudex, with (0 or)1-5 apparent internodes (as in sect. Mesogaea). Stipules oblong, papery, with sparse white and black long trichomes, free from or shortly adnate to petiole, basal 1/3-2/3 connate. Leaves (1-)2-9 cm, 9-25-foliolate; petiole and rachis with sparse trichomes, petiole persistent; leaflet blades lanceolate, 5-7 × 1.5-3 mm, both surfaces with sparse white short trichomes, base rounded to shortly attenuate, apex acuminate, acute, or obtuse. Racemes 3-10-flowered; peduncle 1-9 cm, subequal to or longer than leaves, with sparse to dense short trichomes; bracts 2-4 mm, membranous, with white and black trichomes intermixed. Calyx subcylindric to campanulate, 5-9 × ca. 3 mm, with black and white long trichomes; lobes subulate, 2-4 mm, slightly shorter than tube. Corolla purple or purplish red; standard 1.2-1.3 cm, lamina broadly ovate to broadly obovate, apex 2-lobed; wings 1-1.2 cm, slightly shorter than standard, apex 2-lobed; keel 1-1.1 cm, shorter than wings, beak 1-1.2 mm. Legume stipitate to subsessile; stipe 2-4 mm; body ellipsoid, cylindric, or ovoid, 1.4-3.7 × 0.8-1 cm, membranous to papery, with appressed dense black trichomes. Fl. and fr. Jul-Sep. 2n = 24*.
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