A herbaceous annual up to 30 cm. high, with striate stems, often pubescent. Leaves alternate, ovate-soinute, more or less pubescent, apex acute, base cuneate, margins shallowly toothed or lobed; petiole 1.3 to 3.2 cm long. Flowers solitary, pedicels very slender, noding, 3 to 8 mm long. Fruit (berry) round, 8 to 12 mm in diameter, green, many-seeded, entirely enclosed in the enlarged, 5 to 10 ribbed, membranous calyx. Seeds smooth or tuberculate, rugose, compressed, 2 mm in diameter, orange-yellow. |