A straggling perennial plant, about a foot high, with widely-branching, rough-ish stems, springing from a deep tuberous root. The leaves are dull green, roughish, rather coarse in texture, but not large, mostly less than an inch long, coarsely and irregularly toothed, and the flowers are the shape of a shallow Morning-glory, half an inch across, pale dull-yellow, marked with brown inside, with yellow anthers. This does not bear its berries close to the ground, as do many of its relations, and is not pretty. It grows in dry places, reaching an altitude of eight thousand feet.

There are a great many kinds of Solanum, abundant in tropical America; herbs or shrubs, sometimes climbing; often downy; calyx wheel-shaped, with five teeth or lobes, corolla wheel-shaped, the border plaited, with five angles or lobes and a very short tube; anthers sometimesgrouped to form a cone, filaments short; fruit a berry, either enclosed in the calyx or with the calyx remaining on its base. This is the Latin name of the Nightshade, meaning "quieting."