Plants herbaceous, overall lightly pubescent with white, T-shaped minute hairs. Stems erect or ascending, sparsely to moderately leafy, 15-40 cm. Leaves dull green when fresh or dry, petiolate, those of a pair very unequal (the smaller often less than 1/2 the size of the larger), gradually reduced toward inflorescence, fleshy; petiole 5-45 mm; blade ovate to ovate-oblong or deltate, 15-50 × 6-40 mm, base rounded to subcordate, margins entire or undulate, apex acute, obtuse, or rounded. Flowers 3-25 in umbellate clusters, in forks of branches and distal axils, and terminal on branches; pedicel 1-4 mm; perianth 4-6 mm, tube greenish pink, limbs pink to lavender, 4-6 mm diam.; stamens 2(-3), widely spreading. Fruits 5 mm, puberulent with flattened, white hairs; wings 1.5-2 mm wide.