Isodon adenanthus (Diels) Kudô

Used medicinally for dysentery and enterogastritis.

Herbs perennial. Stems numerous, ascending, 15-40 cm, few branched, densely retrorse gray pubescent. Petiole of mid stem leaves 2-10 mm; leaf blades largest, rhombic-ovate to ovate-lanceolate, (1.5-)2.5-3.5(-6.5) × (1-)1.5-2.5 cm, thin papery, scattered and yellowish glandular, abaxially white pilose, densely white pubescent on veins, base broadly cuneate-decurrent, apex obtuse. Cymes pedunculate, 3-5-flowered, in terminal spikelike panicles 10-20 cm, densely pubescent; floral leaves mostly bractlike, lanceolate, ± entire. Calyx purple, broadly campanulate, 2-3 mm, scattered yellowish glandular, pilose on veins, 2-lipped; teeth ovate-lanceolate, 1-1.5 mm, apiculate at apex, lower 2 slightly larger; fruiting calyx projected, conspicuously 2-lipped, dilated to 4 mm. Corolla blue, purple, pink, or white, densely pubescent except for upper side near base, yellowish glandular, tube ca. 4 mm, upper lip ca. 4 mm, lower lip to 6 mm. Stamens included. Style included. Nutlets brown, ovoid, ca. 1.5 mm in diam. Fl. Jul-Aug, fr. Jul-Sep.

Guizhou, Sichuan, Yunnan

* Pine forests, grasslands; 1100-3400 m.

Plectranthus adenanthus Diels, Notes Roy. Bot. Gard. Edinburgh 5: 228. 1912; P. wui Sun ex C. H. Hu; Rabdosia adenantha (Diels) H. Hara.

Isodon adenanthus là một loài thực vật có hoa trong họ Hoa môi. Loài này được (Diels) Kudô mô tả khoa học đầu tiên năm 1929.