Solanaceae
Annual herbs with tap-roots. Stems 20-50 cm tall, erect, irregularly ribbed, more or less dichotomously branched from base or above, sometimes decumbent, glabrous or with a few short addressed hairs especially on younger parts. Leaves simple, alternate, petiolate, variable, principal blades 4-10 × 3-8 cm, ovate to ovate lanceolate or broadly to narrowly elliptic, sometimes oblong, margins deeply and irregularly toothed, glabrous or rarely with sparsely addressed hairs, petioles 1-4 cm long. Flower solitary, auxiliary, regular, about 5 co cross. Pedicels 0.5-4 cm, 2-4.5 cm in fruit. Calyx 3-5 mm long, gamoselous, lobes 1-3 mm. Fruiting calyx 20-35 mm long, inflated, 10 angled or 10 ribbed, with reticular veins. Corolla yellowish, gamopetalous, infundibular–rotate, 4-10 (-12) mm long with indistinct purple–brown spots at the center. Stemens 5, free, unspiral, anthers bluish or violet, 2-2.5 mm; filaments slender, 3-4 mm. Ovary superior, with two united carpels. Berry globular, 10-15 mm in diameter, smooth, covered with inflated fruiting calyx, seeds many, yellowish, flattened, ovate or broadly elliptic, sub smooth.
Flowering time: September–November.
Central and South America. Other centers of species diversity include Australia and Africa. Solanaceae are often found in secondary vegetation in disturbed areas, but species can occupy a variety of habitats, from deserts to tropical rain forests.