Herb or shrub 1-2 m tall. Stems slender, densely puberulent and also sparsely to moderately pilose with glandular hairs ca. 1-3 mm long.
Sympodial units 4-foliate.
Leaves simple to ternately compound, the blades 1.5-7 x 0.5-4 cm, ca. 1-2 (3) times as long as wide, the simple leaves ovate-elliptic, the compound leaves with the terminal leaflet elliptic and larger than the lateral leaflets, subcoriaceous, moderately to densely puberulent adaxially and abaxially; base truncate to cuneate or subcordate with basal lobes less than 0.5 cm long; margin entire to sinuate; apex acute; petioles 0.2-2 cm, densely puberulent and also sparsely to moderately pilose with hairs 1-3 mm long.
Inflorescences 2.5-6.5 cm, unbranched or forked, with 6-40 flowers, the axes densely puberulent; peduncle (0.3-) 1-2.5 cm; rachis 1.5-4.5 cm; pedicels 3-10 mm, 10-12 mm in fruit, spaced 1-5 mm apart, articulated near the base, leaving pedicellar remnants up to 1 mm long.
Buds ellipsoidal, obtuse at apex. Flowers with the calyx radius 3-4 mm, the lobes 2-3 x 1-1.5 mm, deltate to narrowly triangular, acute, chartaceous, densely puberulent. Corollas 1.5-2 cm in diameter, the radius 8-11 mm, campanulate, somewhat fleshy, violet, the tube 2-4 mm, the lobes 4-8 x 3 mm, triangular, acute at apices, moderately to densely puberulent abaxially, adaxially puberulent toward apex, glabrous toward base, the margin tomentose. Anther thecae 3-4 x 1.5 mm, elliptic-ovate, adpressed to style, yellow (fide Dunal), the pores directed distally; connective 4-5 x 0.5-1 mm, lanceolate, abaxially slightly shorter than thecae at apex, exceeding them at base by ca. 1 mm, absent adaxially, reddish (fide Dunal). Ovary glabrous or slightly puberulent; style 3-5 x 0.5-1 mm, exserted beyond stamens, cylindrical, glabrous; stigma truncate.
Fruits ca. 1 x 1 cm, ellipsoidal to globose, obtuse at apex, the color when ripe unknown, glabrous; stone cell aggregates present.