The leaves of Acanthus are oval, hard leathery, alternate, whole, sharp, hard, green and glossy. However, the leaves of Pyracantha fortunei are obovate or obovate oblong, with blunt or concave apex, wedge-shaped base and serrated margin.
The color of Acanthus is beige. And Pyracantha is compound corymbose, color is white..
The spineless ones are spherical, and the color of mature ones is red, with the same size. Fruit will not wither in winter. The fruit color of Pyracantha fortunei is orange or crimson, which is also spherical. The fruit period is from August to November.