Acer pseudoplatanus

Wide-crowned, deciduous tree to c. 25 m high; andromonoecious. Leaves palmately 3–5-lobed, 8–15 cm long and wide, cordate at base, often glaucous and/or reddish beneath, with scattered short hairs beneath, particularly near the veins; lobes usually divided c. midway to petiole; margins irregulary toothed; petioles 4–15 cm long. Flowers in pendent terminal racemes or racemose panicles to c. 10–15 cm long, appearing after leaves; pedicels slender, 3–8 mm long; sepals and petals similar, greenish, oblong, 2–3 mm long; nectary disc annular, corrugated; stamens 8–10, arising within nectary; ovary woolly. Samaras c. 5 cm long, the seed compartment nearly spherical, under 1 cm long, wings nearly parallel, prominently veined. Flowers Sep.–Nov.