Deciduous large shrubs or small trees, 3 to 8 meters high, flowering period of 2 to 3 months, fruit ripening period from late August to late September. Native to the Mediterranean coast of Europe and Central Asia, is the most widely distributed in the genus hazelnut, the highest economic value of the cultivated species, China has been introduced into cultivation. European hazelnut on the climate and soil has a strong adaptability, like humid climate conditions but poor cold resistance. In China's winter low temperature -10 ℃ below the easy occurrence of frost damage. Can be cultivated in China's Yellow River and Yangtze River Basin.

(1) Lianfeng

Selected from Italy 1 solid. The tree crown is tall, the tree posture is open, the tree strength is strong, the female flower formation ability is strong, the fruit-sitting rate is high, and the yield is abundant. Nut oblong average single fruit 2.6 ~ 2.8 grams; fruit 売红褐色，厚1.1毫米，出仁率43.2%～46.9%。 Cold hardiness, in Shandong Tai'an can be safe overwintering.

(2) Yifeng

The tree crown is small, upright, with moderate growth potential. Nut oblong conical, average single fruit weight 2.5 grams; shell with longitudinal color stripes, golden yellow, 1.3 mm thick, kernel yield 45.3%. The variety of spike fruit, productive, suitable for dense planting.

(3) Taifeng

The crown is tall and the tree's strength is moderate. Nut oval, average single fruit weight 2.6 grams, shell thickness of 1.2 mm, golden yellow, kernel rate of 48%, sitting rate is high, each sequence of fruit 3 ~ 5, high yield.

2, flat hazelnut

Deciduous shrubs, from the tree height of 2 to 4 meters, flowering in late March to late April, fruit ripening in late August to early September. Distributed in the Yellow River, north of the Qinling Mountains, mainly produced in the northeast, Inner Mongolia, North China, Northwest China, northern Sichuan is also distributed. Cold-resistant, resistant to defense thin, adaptable.

(1) Yongling Hazelnut

The tree has a moderate strength and a compact crown. The female inflorescences are many and productive, the nuts are round and neat, the fruits are yellow, the average weight of a single fruit is 1.7 grams, and the kernel rate is 38%. ripening in the second half of August, the cold resistance is strong.

(2) Wangxingping Hazelnut

The tree is strong and healthy, with an open posture. Abundant, small and medium-sized nuts, single fruit weight 1.6 grams, round, yellow, neat, kernel rate of 37% cold resistance.

(3) Long-fruited hazelnut

The tree is strong and healthy, the nut is large, the average weight of a single fruit is 1.8 grams, the nut is oblong, yellow, kernel rate of 35.4%. Abundant yield, strong cold resistance.