Corylus maxima Mill.

It is a large shrub or tree. It grows 9 m tall. It can spread to 4.5 m wide. The leaves are large and heart shaped. They are mid green. The young twigs have sticky hairs. There is a much longer, tubular husk enclosing the nut. The brown nuts are large and egg shaped. Corylus maxima and Corylus avellana often form hybrids.

It is best in deep, well-drained soil. It needs a protected, sunny position. It is resistant to frost but damaged by drought. It suits hardiness zones 5-9.

The nuts are eaten raw. They are also used in nut milk, nut butter, cakes, pies and bread. The leaves are used for sarma in Turkey. They are rolled around a filling of rice or minced meat.

It can be grown by tip layers or by suckers.