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4. Ailanthus vilmorinianus Dode, Rev. Hort. (Paris). 1904: 444. 1904.
刺臭椿 ci chou chun
Ailanthus glandulosa Desfontaines var. spinosa M. Vilmorin & Bois.
Trees, usually over 10 m tall. Branches with soft thorns when young. Leaves odd-pinnate, 50-90 cm, with petiole violet-red and spiny; leaflets 8-17 pairs, opposite or nearly so; blades lanceolate-oblong, 9-15(-20) × 3-5 cm, abaxially gray-green, pilose, adaxially glabrous or puberulent except for veins which are pubescent, base broadly cuneate or somewhat rounded, each side 2-4-dentate, teeth abaxially glandular. Panicles ca. 30 cm. Samarium ca. 5 cm.
● Sparse woods of mountainous slopes or valleys; 500-2800 m. Hubei, Sichuan, Yunnan.
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