Vasilis Teodoridis:
Cornaceae | Cornus
2. Cornus controversa Hemsley; Bot. Mag. 135: sub t. 8261. 1909.
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Cornus controversa
Credit: Harvard University Herbaria
Trees 3–13(–20) m tall. Bark dark gray or yellowish gray; smooth; branches ± horizontal; branches of current year purplish; later greenish; glabrous or pubescent; older branches greenish; with conspicuous semicircular leaf scars and rounded lenticels; winter buds purplish; ovoid or conical; 3–8 mm; glabrous; with several alternate overlapping scales. Leaf blade broadly ovate or broadly elliptic-ovate; 5–13 x 3–9 cm; abaxially light or grayish green; sparsely pubescent with appressed trichomes; papillate; veins 6 or 7(–9); abaxially raised and slightly purplish; base subrounded; apex acute or acuminate. Corymbose cymes terminal; 5–14 cm in diam.; pubescent with appressed trichomes. Flowers 8–9 mm in diam.; buds nearly orbicular; shortly pedicellate. Calyx teeth ca. 0.5 mm; taller than disk. Petals oblong-lanceolate; 3–4.5 x 1–1.6 mm. Stamens longer than petals; filaments whitish; 4–5 mm. Style 2–3 mm; glabrous. Fruit purplish red or bluish black; globose; 6–7 mm in diam.; stones globose; 5–6 mm in diam.; inconspicuously 8-ribbed. Fl. May–Jun; fr. Jul–Sep. 2n = 20.
Broad-leaved or mixed broad-leaved and coniferous forests; 200–2600 m. Anhui; Fujian; Gansu; Guangdong; Guangxi; Guizhou; Hainan; Hebei; Henan; Hubei; Hunan; Jiangsu; Jiangxi; Liaoning; Shaanxi; Shan- dong; Shanxi; Sichuan; Taiwan; Xizang; Yunnan; Zhejiang [Bhutan; N India; Japan; Korea; Myanmar; Nepal; ?Sikkim].