Isodon hispidus (Benth.) Murata

This species is accepted, and its native range is Bhutan to China (Yunnan).


Suddee, S., A. J. Paton, & Parnell, J. (2004). A Taxonomic Revision of Tribe Ocimeae Dumort. (Lamiaceae) in Continental South East Asia I. Introduction, Hyptidinae & Hanceolinae. Kew Bulletin, 59(3), 337-378. doi:10.2307/4110949

Himalaya, India, Burma, Laos & Thailand.
In pine forest or hill evergreen forest; 700 - 2200 m.
Morphology General Habit
Erect perennial herb or undershrub up to 2 m tall
Morphology Leaves
Leaves chartaceous, broadly ovate, 30 - 60 x 20 - 45 mm, apex acute, margin serrate or serrate-crenate, base rounded or subtruncate, puberulous to pubescent above, tomentose or villous and dotted with minute sessile glands beneath, venation subprominent to prominent beneath; petioles up to 40 mm long in lower leaves, gradually reduced in length with leaves becoming sessile above, tomentose or villous
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens long-exserted; anterior pair inserted above the middle of corolla tube, glabrous or sparsely villous at base; posterior pair inserted near the base of corolla tube, villous at base
Morphology Reproductive morphology Flowers Calyx
Calyx campanulate, 1.5 - 2 mm at anthesis, uniformly densely pubescent or densely villous, tubular-campanulate, 4- 5 mm long in fruit, inconspicuously 2-lipped; teeth subequal, lanceolate, usually acuminate at apex; tube declinate, 10-nerved, twice as long as teeth, glabrescent, with sessile glands outside, not gibbous at anterior base
Morphology Reproductive morphology Flowers Corolla
Corolla white, straight, 4- 7 mm long; posterior lip subequally 4- lobed, lobes rounded or obtuse at apex, pubescent, with sessile glands on back; anterior lip orbicular, 2 - 2.5 mm long, subequal to posterior, slightly concave, glabrous inside, glabrescent to pubescent, with sessile glands outside; tube 3 - 4.5 mm long, subtubular, slightly dilated at throat, glabrous or slightly pubescent, without sessile glands outside
Morphology Reproductive morphology Flowers Disc
Disc annular with equal lobes
Morphology Reproductive morphology Flowers Gynoecium Style
Style long-exserted but shorter than stamens
Morphology Reproductive morphology Fruits
Nutlets brown, ellipsoid or oblong, 1 - 1.5 mm long, smooth, producing mucilage when wet or not.
Morphology Reproductive morphology Inflorescences
Inflorescence terminal and axillary, composed of several lax, narrow raceme branches, forming a panicle, pubescent to tomentose on axis; cymes with peduncle up to 25 mm long, lax or dense, 8 - 15-flowered; bracts ovate or ovate- lanceolate, adaxially glabrescent, pubescent or sparsely villous, abaxially densely villous; bracteoles linear, linear-oblong or linear-oblanceolate, 1 - 2 mm long, villous, caducous or persistent; pedicels 1 - 3 mm long at anthesis, 3 - 10 mm long in fruit, sparsely villous
Morphology Stem
Stems woody at base, branched or not, quadrangular, pubescent to tomentose, sometimes densely villous
This species is very similar to Isodon lophanthoides, and the two species are often confused in herbaria. In the wild, I. hispidus is a larger and more pubescent taxon, although the types (Wall. Cat. 2741) are less hairy than some specimens. Li (1988) reduced Rabdosia shimizuana Murata to a synonym of Isodon hispidus stating that it is identical to I. hispidus according to Murata's description. However, from the photograph of the holotype R. shimizuana has the leaves congested near the stem base, and therefore resembles several specimens of I. lophanthoides from various parts of Thailand and Indo-China. It is clear that R. shimizuana is actually just a form of I. lophanthoides, which Muschler (1907) recognised as P. volkensianus Musch. and Doan (1936) recognised as P. striatus var. kerrii Doan (nom. inval.).
Flowering September - December, fruiting November -January.
India, Sillet, [Sylhet, in Bangladesh] Wallich s.n. [syntype K!]; India, Sillet [Sylhet], Nov. 1829, De Silva in Wall. Cat. 2741 [syntype K!, K-W!].
Thai: A-to Chu Na Tsuh (Lisu).

In Thailand, the leaves are pulverised with a small amount of water added, and put on burns

Native to:

Assam, Bangladesh, China South-Central, East Himalaya, Laos, Myanmar, Thailand

Isodon hispidus (Benth.) Murata appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 2001 Griffith, W. [214], India K001067852 Yes
Jan 1, 2001 Wallich, N. [2741], India K001067854 syntype Yes
De Silva, F. [Cat. no. 2741] Plectranthus hispidus K001116991 Yes

First published in Acta Phytotax. Geobot. 24: 82 (1969)

Accepted by

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Khanam, M. & Hassan, M.A. (2008). Lamiaceae Flora of Bangladesh 58: 1-161. Bangladesh National Herbarium, Dhaka.
  • Suddee, S., Paton, A.J. & Parnell, J.A.N. (2004). A taxonomic revision of tribe Ocimeae Dumort. (Lamiaceae) in Continental South East Asia. I. Introduction, Hyptidinae & Hanceolinae Kew Bulletin 59: 337-378.


Kew Backbone Distributions

  • Khanam, M. & Hassan, M.A. (2008). Lamiaceae Flora of Bangladesh 58: 1-161. Bangladesh National Herbarium, Dhaka.

  • Herbarium Catalogue Specimens

    Digital Image © Board of Trustees, RBG Kew

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

  • Kew Bulletin

    Kew Bulletin

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.