Ilex arisanensis Yamam.

Trees evergreen, small. Branchlets deep brown-purple, slender, glabrous; older branchlets gray-brown, terete, longitudinally rugose, with sparse small lenticels. Petiole 5-8 mm, adaxially sulcate, glabrous; leaf blade abaxially pale brown-green, adaxially dark brown-green, lanceolate or narrowly elliptic, 5-8 × 1.5-2.5 cm, papery, both surfaces glabrous, midvein impressed adaxially, lateral veins 7-12 pairs, raised abaxially, slightly impressed adaxially, anastomosing near margin, base acute or cuneate, margin serrulate, apex caudate, acumen (1.5-)1.8-2(-2.2) cm. Flowers not known. Infructescences: 1-fruited cymes, fasciculate, fascicles 4-6-fruited, axillary; fruiting pedicels ca. 3.5 mm, glabrous; bracteoles basal, oblong, ca. 1 × 0.5 mm, puberulent. Fruit red, globose, 3-5 mm in diam., longitudinally sulcate; persistent calyx explanate, shallowly 4-lobed, lobes ovate, glabrous; persistent stigma mammilliform, shallowly 4-lobed; pyrenes 4, obovoid, transverse section compressed deltoid, abaxially longitudinally and slightly palmately striate. Fl. unknown, fr. Jun.

Taiwan (Ali Shan).

● Forests, mountains; ca. 800 m.

Ilex arisanensis is a species of plant in the family Aquifoliaceae. It is endemic to Taiwan. It is threatened by habitat loss.

Ilex arisanensis là một loài thực vật có hoa trong họ Aquifoliaceae. Loài này được Yamam. mô tả khoa học đầu tiên năm 1925.

阿里山冬青（学名：Ilex arisanensis）是冬青科冬青属的植物，是台灣的特有植物。分布在台灣本島，生长于海拔830米的地区，多生长于山地林中，目前尚未由人工引种栽培。