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FOC | Family List | FOC Vol. 17 | Lamiaceae | Isodon

26. Isodon lophanthoides (Buchanan-Hamilton ex D. Don) H. Hara, J. Jap. Bot. 60: 235. 1985.

线纹香茶菜 xian wen xiang cha cai

Herbs perennial, repent at base, with underground globose root tubers. Stems 0.5-1.5 m tall, erect to ascending, puberulent or pilose, many leafed at base. Stem leaves opposite; petiole equal to or longer than blade; leaf blade broadly lanceolate to ovate, 1.5-20 × 0.5-8.5 cm, papery, minutely hirsute, adaxially olive green, abaxially greenish, sparsely brown glandular, base cuneate to rounded, rarely shallow cordate, margin crenate, apex obtuse to acuminate. Panicles terminal and axillary, 7-20 × 3-6 cm; cymes helicoid, 11-13-flowered, pedunculate; floral leaves bractlike, ovate; bracteoles linear, 3-5 mm, slightly longer than pedicels. Calyx campanulate, ca. 2 mm, ca. 1.7 mm wide at mouth, base sparsely villous outside, sparsely red-brown glandular, 2-lipped to 2/3 its length; teeth ovate-triangular, lower 2 longer; fruiting calyx elongated, 4.5-5 mm. Corolla white or rose, with purple spots on limb, 2-7 mm; tube 3.7-5 mm, straight; upper lip 1.6-2 mm, lower lip slightly longer. Stamens and style much exserted. Nutlets brown, compressed ovoid, ca. 1 × 0.75 mm, glabrous, smooth. Fl. and fr. Aug-Dec.

Hills, forests, ravines, thickets, rice paddies, streamsides; 400-3000 m. Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Xizang, Yunnan, Zhejiang [India, Laos, Myanmar, Nepal, Thailand, Vietnam]

1 Plants to 1.5 m tall; leaf apices acuminate.   (2)
+ Plants 0.5-1 m tall; leaf apices obtuse.   (3)
2 (1) Leaves ovate, to 20 × 8.5 cm   26b var. gerardianus
+ Leaves ovate-lanceolate to lanceolate, 5-8.5 × 1.5-3.5 cm   26c var. graciliflorus
3 (1) Corolla 6-7 mm   26a var. lophanthoides
+ Corolla 2-3 mm   26d var. micranthus

Lower Taxa


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