The leaves of Eustoma grandiflorum are ovate in shape, with the whole edge, gray green in color, opposite to each other. The leaves of Platycodon grandiflorum are ovate to lanceolate, with fine serrations on the top, green on the top, white powder on the bottom, whorled
The corolla of Eustoma grandiflorum is funnel-shaped, with single and double petals. There are various colors, including red, pink, lavender, purple, white, yellow and multicolor flowers with different degrees of border. The flower color of Platycodon grandiflorum is less than that of the former. There are three kinds of color: blue, purple and white. The calyx is a bell bell, with five cracks, and the lobes are triangular or narrow triangle.