Subshrubs or shrubs [trees], erect, ascending, or decumbent; taprooted. Stems unarmed, hairy 3–7-veined from base. Inflorescences axillary or terminal, cymose, 1–11-flowered; epicalyx absent. Flowers bisexual [rarely unisexual or cleistogamous]; sepals basally connate, basally abaxially glandular-hairy; petals clawed, claws filiform, lamina rhombic, deltate, reniform, or ± triangular, base divided into 2 lobes or not, lobe margins entire or erose, apex notched, entire, or with 2 widely spaced teeth, surfaces glabrous or hairy, abaxial surface appendaged or not, appendage ± filiform, cylindric, or clavate, inserted in middle of lamina distally, petals inflexed toward center of flower and connivent to apex of staminal tube such that when viewed from above corolla resembles a disc with staminodes, style, and stigma, if exserted, protruding from center; androgynophore present [absent]; staminodes 5, connate into cylindric or ± rounded, minute or indistinct. Fruits capsules, often pendulous, oblate or subspheric, 5-locular, dehiscence septicidal and then loculicidal, hairy [glabrous], prickled. Seeds 1 per locule, ovoid, smooth, wrinkled, or tuberculate; endosperm absent; cotyledons leafy, folded and rolled around hypocotylar axis. x = 10.
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