Isodon rugosus (Wall. ex Benth.) Codd

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.

Afghanistan, Pakistan, Chitral, Himalaya (Kashmir to Bhutan), S. W. China (Yunnan).

Xizang [Afghanistan, Bangladesh, Bhutan, India, Nepal, Pakistan].

1200-3100 m

Thickets on hills, valleys; 1800-2700 m.

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

Isodon rugosus là một loài thực vật có hoa trong họ Hoa môi. Loài này được (Wall. ex Benth.) Codd mô tả khoa học đầu tiên năm 1968.