Description from Flora of China
Euonymus nanoides var. oresbius (W. W. Smith) Y. R. Li; E. oresbius W. W. Smith; E. pachycladus Handel-Mazzetti.
Deciduous dwarf shrubs, ascending, many branches at middle and up, 1-3 m tall; branches greenish gray, 4-angled, sturdy, twigs greenish, with corky wings. Petiole very short, 2-3 mm; leaf blade thickly papery, linear-elliptic, 2-4 × 3-10 mm, base subrounded, margin entire to crenulate, apex obtuse or acute; lateral veins invisible. Peduncle few, clustered axillary, mostly several flowered; pedicel 1-5 mm. Flowers 4-merous, 5-7 mm in diam.; sepals semiorbicular, very small; petals white-green or greenish yellow, suborbicular. Capsule obovoid-rhombic, base attenuate, 4-angled, pinkish or reddish when fresh, brown or yellow-brown to red-brown when dry, ca. 8 mm × 1 cm, sometimes only 2 or 3 locules developing. Seeds ovoid, dark brown, partially covered by orange aril. Fl. Apr-Jul, fr. Jul-Oct.
The distribution report of this species from Nei Mongol has not been confirmed.
● Forests, scrub; 2900-3400 m. Gansu, Hebei, Henan, ?Nei Mongol, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan.