View source for Vitis davidii

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Vitis davidii, Foex (Spinovitis Davidii, Romanet. Vitis Davidiana, Dipp. V. armata, Diels & Gilg. V. vinifera var. Davidii, Hort.). Sts. and petioles aimed with straight or slightly recurved prickles, glabrous: tendrils interrupted: lvs. long-petioled, large, paper-like, somewhat glaucous and becoming glabrous beneath, broadly ovate, obscurely angled, the base cordate, the apex acuminate and acute, the margin lightly repand-apiculate-serrate: thyrse peduncled, long-conical, usually surpassing the lf., the fls. very early: fr. rather large, globose, black. China.—Old branches prickly.

Var. cyanocarpa, Sarg. (V. armata var. cyanocarpa, Gagnep. V. armata var. Veitchii, Hort.). Less prickly, the growing shoots bare: fr. bluish: perhaps a hybrid. China.
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