Q. Robur: tree; leaves deciduous, cuneately oblong, irregularly sinuated or almost pinnatifid, sessile or shortly stalked; fruits clustered above the middle of a long peduncle (2-6 inches long). - Woods and hedges. Fl. April.

Q. sessiliflora: tree; leaves deciduous, cuneately-oblong, irregularly sinuated, stalked, the stalks 1/2-1 inch long; fruits solitary or clustered, sessile on the branch, or seated on a short peduncle (rarely 1 inch long). - Woods. Fl. April.