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Chinese Plant Names | Family List | Lamiaceae | Isodon

29. Isodon rugosus (Wallich ex Bentham) Codd, Taxon. 17: 239. 1968.

皱叶香茶菜 zhou ye xiang cha cai

Description from Flora of China

Plectranthus rugosus Wallich ex Bentham, Pl. Asiat. Rar. 2: 17. 1830; Isodon plectranthoides Schrader ex Bentham; I. rugosus (Wallich ex Bentham) Murata.

Shrubs erect, much branched, to 1.5 m tall; branchlets slender, densely stellate tomentose. Stem leaves opposite; petiole 2-10 mm, densely tomentose; leaf blade ovate to elliptic, 1-3.5 × 0.5-1.8 cm, papery, rugose, adaxially olive green, densely stellate tomentose, abaxially gray tomentose, base broadly cuneate to rounded, margin crenulate, apex obtuse; lateral veins 4- or 5-paired, immersed adaxially, elevated abaxially. Cymes axillary, pedunculate, in stellate tomentose panicles, basal cymes long branched to 21- or more flowered, apical cymes 3-5-flowered; floral leaves slightly longer than cymes, upper ones much shorter, subsessile, ovate. Pedicel 2-3 mm. Calyx campanulate, ca. 2 mm, densely stellate tomentose outside; teeth broadly triangular, subequal, minute, ca. 1/3 as long as calyx tube; fruiting calyx slightly dilated, tubular-campanulate, slightly curved, ca. 3 mm, conspicuously 10-veined. Corolla white, tinged rose, or dark lilac on upper lip, ca. 7 mm, sparsely stellate tomentose outside, glandular, tube ca. 3 mm. Stamens included. Style included. Nutlets dark brown, triquetrous, oblong, ca. 1.5 mm, glabrous. Fl. Jul-Sep, fr. Aug-Oct.

Thickets on hills, valleys; 1800-2700 m. Xizang [Afghanistan, Bangladesh, Bhutan, India, Nepal, Pakistan].


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