长管香茶菜 Isodon longitubus

  • Scientific Name: Isodon longitubus (Miq.) Kudô
  • Ref: Mem. Fac. Sci. Taihoku Imp. Univ. 2:139. 1929
  • Synonyms: Amethystanthus longitubus (Miq.) Nakai; Plectranthus longitubus Miq.; Rabdosia longituba (Miq.) H.Hara
  • Chinese Common Name: 长管香茶菜 chángguǎn xiāngchá∙cài
  • Japanese Common Name: アキチョウジ [秋丁子] akichōji
  • Family: Lamiaceae
  • Genus: Isodon
  • Distribution: Streamsides in forests; 500-1100 m. Anhui, Zhejiang [Japan].
  • Photo: 08/14/2010, Qingliang Peak, Zhejiang
Herbs perennial, to 1 m tall. Stems ascending, purplish, densely retrorse pubescent, branched basally. Petiole (0.2-)0.5-2 cm, densely pubescent; leaf blade lanceolate-ovate to ovate, 3.5-12 × 2-4 cm, papery, adaxially olive green, pubescent along veins, otherwise minutely strigose, abaxially green-purple, densely pubescent on veins, sparsely golden glandular, base cuneate to cuneate-decurrent, margin serrate except for entire base, apex short acuminate; lateral veins 3- or 4-paired, elevated. Panicles 10-20 cm, terminal and axillary; cymes 1-3(-5)-flowered, pedunculate, finely pubescent; upper floral leaves subsessile, bractlike, margin entire; bracteoles linear, finely pubescent. Calyx campanulate, to 4-6 mm, purplish, finely pubescent along veins outside and margin, otherwise glandular, 2-lipped to middle; upper lip reflexed, with 3, triangular, ± acute short teeth; lower lip with 2, ovate-triangular, ± acute teeth; fruiting calyx to 6 mm, conspicuously veined. Corolla purple-blue, to 2 cm, puberulent outside; tube ca. 3 × as long as limb. Stamens included. Style included. Nutlets dark brown, depressed globose, ca. 1.5 mm wide, verruculose. Fl. Jun-Oct, fr. Oct. (Flora of China)

08/14/2010, Qingliang Peak, Zhejiang

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