A member of the nightshade family, related to the potato and tomato, actually a berry. There are many varieties and colors from dark purple to white, and range from 2 to 12 inches and from oblong to round. The most common in the U. S. Is the large, pear-shape variety with a smooth, glossy, dark purple skin. Japanese or Asian eggplants are very narrow and range in color from solid purple to striated shade. Italian or baby eggplant looks like a miniature version of the common large variety, is more delicate skin and flesh.