- Scientific Name: Acer truncatum Bunge
- Ref: Enum. Pl. China Bor.:10. 1833
- Synonyms: Acer cappadocicum subsp. truncatum (Bunge) A.E.Murray; A. lobulatum Nakai; A. pictum var. truncatum (Bunge) Chin S.Chang
- English Common Name: Shandong maple, Shantung maple, purpleblow maple
- Chinese Common Name: 元宝枫 yuánbǎo∙fēng, 元宝槭 yuánbǎo∙qì, 元宝树 yuánbǎo∙shù, 五脚树 wǔjiǎo∙shù
- Japanese Common Name: マンシュウイタヤ [満州板屋] manshūitaya
- Family: Sapindaceae
- Genus: Acer
- Distribution: Forests; 400-1000 m. Gansu, Hebei, Henan, Jiangsu, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi [Korea].
Trees 5-10 m tall, andromonoecious. Bark grayish brown or dark brown. Branchlets slender, glabrous; winter buds ovoid. Leaves deciduous; petiole 3-9 cm, glabrous, rarely puberulent at base when young; leaf blade abaxially pale green, adaxially dark green, 8-12 × 5-10 cm, papery, abaxially reticulate, glabrous, rarely with tufts of hairs at vein axils when young, adaxially glabrous, base usually truncate or rarely subcordate, usually 5-lobed, rarely 7-lobed; lobes triangular-ovate or triangular- lanceolate, 3-5 × 1.5-2 cm, margin entire, apex acuminate or caudate-acuminate. Inflorescence erect, corymbose; peduncles 1-2 cm, slender, glabrous. Pedicel ca. 1 cm, slender. Sepals 5, oblong, 4-5 mm, apex obtuse. Petals 5, oblong-obovate, 5-7 mm. Stamens 8, 2-3 mm in staminate flowers, shorter in pistillate flowers, glabrous, inserted near inner margin of disk. Disk slightly lobed. Ovary in fertile flowers compressed; style ca. 1 mm, glabrescent. Infructescence corymbose, pendulous, each with 3-10 fruit. Nutlets flat, thick, 1.3-1.8 × 1-1.2 cm, glabrous; wing greenish white, usually ca. as long as nutlets, rarely longer, parallel on both sides, wings spreading at obtuse or right angles. Fl. Apr, fr. Aug. 2n = 26. (Flora of China)