Bell-shaped

In its graphical representation, the normal distribution is a bell-shaped curve, with the value growing as one moves closer to the middle and decreasing as one moves away.

The large, bell-shaped Devil's claw, which is native to Central and South America, was introduced into Australia in the 19th century.

The flowers of the strawberry tree are bell-shaped.

Rose apple trees grew in the backyard of my grandparents' house in Ibaan, Batangas, Philippines. They are not really apples. The fruits are bell-shaped and pinkish red.