Trees by Genus

Genus 'Ptelea'

Ptelea trifoliata

Ptelea trifoliata (Hop Tree)

Ptelea trifoliata

Also known as: Stinking Ash

Native: Southern Canada and eastern United States

Location: Planted in gardens and sometimes naturalised in central Europe.

Often shrubby.


Leaves have three leaflets, and like the bark and unripe fruits give off a strong aromatic smell when crushed.


Ptelea trifoliata

Flowers may be almost white and open in June and July, each about 0.8cm in round clusters about 5-7.5cm across.


Ptelea trifoliata

Fruits are up to 2.5cm across, eventually ripening to a pale straw colour.