Populus spp.
- Height: up to 30 m
- Stem: grey, dark bark
- Leaves: mostly heart-shaped or triangular with long petioles
- Flowers: drooping catkins
- Fruits/seeds: Capsules containing many small, hairy seeds (wind dispersal)
- Other: fast-growing deciduous tree that belongs to the willow family
Photos: Janina Deutschmann (1,2,3), Martina Gehret (4)