Acer henryi Pax

Trees to 10 m tall, dioecious. Branchlets slender; winter buds small, scales ovate, pubescent. Leaves deciduous; petiole 5-10 mm, pubescent; leaf blade elliptic or oblong-elliptic, 6-12 × 3-5 cm, papery, both surfaces pubescent especially on veins abaxially when young, then glabrescent with only tufts of hairs at vein axils abaxially, 3-foliolate, margin entire or remotely serrate apically, apex acuminate or cuneate. Inflorescence pendulous, racemose, to 7 cm, pubescent. Flowers subsessile or sessile, yellow-green. Sepals 4, ovate, ciliate along margin. Petals 4, white, deciduous before anthesis. Stamens 4, glabrous, rudimentary in pistillate flowers. Disk amphistaminal, small. Ovary glabrous, rudimentary in staminate flowers; style glabrous; stigmas revolute. Fruiting pedicel ca. 2 mm. Nutlets convex, oblong, ca. 1 cm; wing including nutlet ca. 2.5 cm × 5 mm, wings spreading at 90° or erectly. Fl. Apr, fr. Sep.

Anhui, Fujian, Gansu, Guizhou, Henan, Hubei, Hunan, Jiangsu, S Shaanxi, S Shanxi, Sichuan, Zhejiang.

● Mixed forests; 500-1500 m.

Acer cissifolium K. Koch subsp. henryi (Pax) A. E. Murray; A. henryi f. intermedium W. P. Fang; A. henryi var. serratum Pampanini; Crula henryi (Pax) Nieuwland.

Acer henryi is an Asian species of maple. It has been found only in China (Anhui, Fujian, Gansu, Guizhou, Henan, Hubei, Hunan, Jiangsu, Shaanxi, Shanxi, Sichuan, Zhejiang).

Acer henryi is a small tree up to 10 meters tall, dioecious (meaning that male and female flowers are on separate trees). Leaves are compound with 3 leaflets, thin and papery, up to 12 cm wide and 5 cm across usually with 3 lobes, with a waxy, whitish underside. Leaflets sometimes have a few shallow teeth but no lobes.