The Turkish Hazel, native to South-East Europe, Turkey and Iran was was introduced to Britain in 1582. It is an attractive tree, with a straight trunk. It has been widely planted in city streets, where it thrives. Its buds and catkins are similar to the Common Hazel but its fruit is quite different. The nut is hard and small and of no commercial value.
Fruit in July. The nuts sit in an involucre of leafy bracts which has long soft prickles extending from it.