Quercus robur
- Height: up to 40 m
- Trunk: branching low on the trunk, light grey to grey-brown bark, longitudinally fissured, deeply furrowed
- Leaves: alternate, distinctly lobed (5–7 unevenly rounded lobes and notches), 10–12 cm long, upper surface deep green and glossy, with short petioles (4–8 mm), often with small auricles at the base of the leaf
- Buds: light brown, short, spherical-ovoid, clustered at the shoot tips
- Flowers: male flowers form 2–4 cm long, pendulous catkins on long shoots; female flowers form small spikes with 2–5 flowers at the shoot tips, appearing simultaneously with the emergence of foliage
- Fruits/Seeds: egg-shaped fruits with flat caps/fruit cups on long stalks (4–6 cm), clustered together
- Other: Foliage emerges before that of the sessile oak; becomes very gnarled with age
Photos: BUND Naturschutz in Bayern (1,2,3)