Leaves green to bright green; terminal leaflet blade ovate or obovate to slightly rhombic, length/width 1.3–1.6, teeth: relative number 0.2–0.6, relative size 1.5–4, terminal tooth longer than adjacent teeth. Flowers bisexual, 12–14.6 mm diam.; hypanthium 11–16.5 mm diam.; petals white, obovate to widely obovate, margins distinct, sometimes distally crenate. Achenes superficial; bractlets and sepals spreading to strongly reflexed; torus carmine, shiny, elongate-conic (often somewhat pointed), easily separating from hypanthium. 2n = 14.