Bearded Maple – Acer barbinerve

bearded maple fall foliage Pubescent veins on the undersides of leaves; Also called hairy-veined or ussuri maple.

Hairy-veined Maple Habit Hairy-veined Maple – Acer barbinerve

Hairy-veined Maple foliage Chinese: 髭脉槭 cu mao feng

Native: ASIA-TEMPERATE; Russian Far East: Russian Federation – Primorye China: China – Gansu [s.e.], Heilongjiang, Jilin, Liaoning, Shaanxi; Eastern Asia: Korea [3]. “Shrubs or small, multistemmed trees, to 7 m tall, dioecious. Bark grayish yellow or grayish brown, smooth. Young branchlets puberulent, becoming nearly glabrous and dull reddish brown in second year; bud scales 2 pairs. Leaves deciduous; petiole 4-6 cm, slender, puberulent when young, glabrescent. (For words like that, you should pay me.)

References:
1. Hairy-veined Maple, Morton Arboretum acc. 157-91*2, photographed October 19, 2009 by Bruce Marlin
2. eFloras.org, Flora of China, “Hairy-veined Maple – Acer barbinerve.”
3. USDA, ARS, National Genetic Resources Program. (GRIN) “Acer barbinerve Maxim.”