Other images:

• Leaf close-up 
• Typical trunk and bark 
• Young shoot with male and female catkins, bark in the background (late April) 
• Female catkin (late April) 
• Male catkins (late April) 
• Young fruits (early May) 

Voucher: Kostadinov 055, (URV)

Brief description: A big, monoecious tree, with brown bark exfoliating in thin layers. Leaves are simple, ovate, oblong to deltoid,  alternate, entire, pinnately veined,  margins double serrate-toothed to entire toward the base, villous on the veins beneath. Flowers are unisexual catkins, the staminate occurring near the apical bud, the pistillate -- on upper axillary ones. Fruits are depressed-ovate and pubescent. 

Campus data: Abundant everywhere in the wild, not cultivated. Mature trees are usually of a considerable size.