Photinia callosa Chun ex Yu

Shrubs or trees, deciduous, to 12 m tall. Branchlets grayish brown to blackish brown, glabrous, with few yellow lenticels; buds ovoid, 2–3 mm; scales brown, glabrous. Petiole 0.5–1.5 cm, glabrous; leaf blade lanceolate or oblong-lanceolate, 5.5–13 × 1.5–3.5 cm, papery, veins 12–16 pairs, midvein prominently raised abaxially and impressed adaxially, both surfaces glabrous, base cuneate, margin slightly revolute, shallowly sharply serrate, sometimes subentire, apex caudate or acuminate. Compound corymbs terminal, 4–6 cm in diam., many flowered; rachis and pedicels glabrous, lenticellate. Pedicel 3–7 mm. Flowers 6–9 mm in diam. Hypanthium campanulate, 1–2 mm, abaxially glabrous. Sepals ovate, ca. 1/2 as long as hypanthium, apex obtuse. Petals white, obovate-oblong, 2–3 mm, glabrous, base shortly clawed, apex obtuse. Stamens 20, slightly shorter than petals. Styles 2 or 3, mostly connate, glabrous. Fruit ovoid-globose, 4–6 × 3–4 mm, glabrous; fruiting pedicels 5–9 mm, with distinct lenticels; seeds black, ovoid, ca. 4 mm. Fl. Apr–May, fr. Aug–Sep.

Guangdong, Guangxi.

2Sparse forests in mountain valleys, slopes; 400--800 m.

Photinia callosa là loài thực vật có hoa trong họ Hoa hồng. Loài này được Chun ex K.C. Kuan miêu tả khoa học đầu tiên năm 1963.

厚齿石楠（学名：Photinia callosa），为蔷薇科石楠属下的一个植物种。