天山枫 tian shan feng

Acer semenovii Regel & Herder, Bull. Soc. Imp. Naturalistes Moscou 39: 550. 1866; A. ginnala var. semenovii (Regel & Herder) Pax; A. tataricum var. semenovii (Regel & Herder) Regel.

Branchlets yellowish brown, glabrous. Petiole 2-4 cm, slender, glabrous; leaf blade ovate, 1.2-2.5 × 1-3.2 cm, subleathery, base rounded, undivided or 3- or 5-lobed, margin serrate or doubly serrate, apex acute. Corymb glandular pubescent, several flowered. Petals greenish. Samara pubescent or glandular pubescent when young, wing including nutlet 3-3.5 cm, wings spreading at right angle. Fl. May-Jun, fr. Sep.

Deciduous forests of valleys and slopes; 2000-2200 m. W Xinjiang [Afghanistan, S Russia; SW Asia].