Boykinia aconitifolia Nutt.

Plants: rhizomes proliferating underground. Flowering stems 15-80 cm. Basal leaves: petiole 3-18(-31) cm; blade usually reniform, rarely orbiculate-cordate, 3-7-lobed to 1/2-3/4 its length, (2.5-)4-8(-12) × (3-)5-13(-15.5) cm, margins usually 2-3-times dentate, rarely crenate. Cauline leaves: stipules 1-8 mm, either expansions of petiole base, fringed with brown hairs, or foliaceous. Inflorescences ± pyramidal, 5-20(-30)-flowered per primary branch. Pedicels densely stipitate-glandular. Flowers: hypanthium campanulate to turbinate, free portion 0.7-1 mm, densely stipitate-glandular; sepals erect, lanceolate to narrowly lanceolate, 1-2(-2.5) mm, apex acute; petals spatulate to ovate, 3-6 × 1-3 mm, 2-3(-4) times as long as sepals, base tapered to claw, margins plane; nectary green; stamens 0.9-1.4 mm; ovary subinferior. Capsules ovoid, turbinate, or urceolate. Seeds usually black, tuberculate. 2n = 14.