Leaves: petiole 3-12 cm; blade deeply lobed, 1-5 cm, ultimate margins crenate-dentate. Inflo-rescences 5-8-flowered, 10-30 cm, stipitate-glandular; bracts subtending pedicels conspicuous, auriculate. Flowers: hypanthium campanulate-urceolate, 4-5 mm, glabrous; sepals 3-5 mm, apex long-acuminate; petals usually greenish with purple margins, narrowly lanceolate, unlobed, 4-5(-7) mm, apex long-tapered; stamens included, 2-3 mm; ovaries connate proximally 1/2 their lengths; styles barely exserted, 1 mm; stigmas distinct. Capsules brown, ovoid, 8-11 mm. Seeds 150-200, 0.8-1 mm. 2n = 14.