Other images:

• Leaf close-up
• Branches with previous year's fruits and male and female catkins (early February)
• Male and female catkins (early February)
• Another group of catkins close-up

Voucher: Kostadinov 150, (URV)

Brief description: A shrub to a small monoecious tree with a three-angled pith. Leaves are ovate to obovate simple, alternate, entire, margins  doubly serrate-toothed, pinnately veined, glabrous. Flowers are unisexual, the staminate catkins maturing before leaves develop, the pistillate ones -- becoming woody and persistent. Fruits are a small achene or samara. 

Campus data: Abundant around water ponds and streams in the shadowy places around campus. A.serrulata shrub patches comprise a conspicuous community around Westhampton lake.  Practically absent elsewhere.