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This species is accepted, and its native range is Assam, Thailand (Ranong).
A specimen from Kew's Herbarium


Suddee, S., A. J. Paton, & Parnell, J. (2005). Taxonomic Revision of Tribe Ocimeae Dumort. (Lamiaceae) in Continental South East Asia III. Ociminae. Kew Bulletin, 60(1), 3-75. Retrieved from

A global conservation species assessment is difficult given the lack of collections in Burma. It is not known whether the disjunction in Burma is real or an artifact of collection intensity. In Thailand it has only been collected once. That area is now a town and no populations were seen during recent field work in December 1999. A conservation assessment for Thailand would be CR B1+B2 ab (i,ii,iii).
India & Thailand.
In bamboo & evergreen forest; 50 - 900 m.
Morphology General Habit
Morphology Leaves
Leaves membranous or chartaceous with 1 - 2 upper pairs sessile, otherwise petiolate, ovate or elliptic-ovate, 80 - 250 x 40 - 150 mm, apex acute, base shortly cuneate, margin serrate-dentate, sometimes obscurely so, sessile glands prominent and denser beneath, glabrescent on nerves on both sides, otherwise glabrous, 1 - 2 pairs of upper leaves much smaller than lower leaves; petioles up to 8 cm long, slender, glabrous or glabrescent
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens far exserted, 4 times or more as long as anterior corolla lip
Morphology Reproductive morphology Flowers Calyx
Calyx membranous, 8 - 10 mm long in flower, 12 - 15 mm long in fruit; posterior lobe orbicular, apiculate, glabrous on both sides or with hairs on nerves inside, decurrent on tube; anterior with 2 median teeth subulate, longest, lateral teeth minute, shorter than posterior; tube glabrescent to pubescent with sessile glands outside
Morphology Reproductive morphology Flowers Corolla
Corolla pinkish-white, 22 - 25 mm long; posterior lip 3-lobed, median lobe largest, emarginate; anterior lip boat-shaped, concave, ± equal to the posterior; tube 10 - 12 mm long, straight, broadly or narrowly cylindric, pubescent outside
Morphology Reproductive morphology Flowers Disc
Disc with anterior side well- developed, thick, obtuse at apex, not exceeding ovary
Morphology Reproductive morphology Flowers Gynoecium Style
Style exserted far beyond stamens, clavate-capitate and slightly cleft at apex
Morphology Reproductive morphology Fruits
Nutlets dark brown, oblong, 2.5 - 3 mm long, minutely reticulate, or tuberculate, not producing mucilage when wet.
Morphology Reproductive morphology Inflorescences
Inflorescence terminal 8 - 25 cm long, axis pubescent; bracts sessile, subtending 2 - 3 flowers, usually forming a conspicuous apical coma, caducous or persistent, ovate-lanceolate, to 10 mm long, shorter or longer than pedicel in flower and fruit, acuminate or cuspidate, adaxial glabrous, abaxial glabrescent; pedicels 4- 5 mm long in flowers, 5 - 7 mm long in fruit, pubescent
Morphology Stem
Stems round-quadrangular, pubescent
This species differs from all others in its larger leaves, larger flowers and very long stamens. The bracts on the top of the inflorescence are more conspicuous in the type than in Thai material. The present study shows the species to have a disjunct distribution in Assam, India and Ranong province, Thailand, while being absent, apparently, from Burma. In Thailand it has been collected only once near the Thai-Burmese border and has never been found again since.
Flowering and fruiting July - December.
India, Assam, South Lushai Hills, 900 m, July - Aug. 1929, undergrowth in bamboo forest, Wenger 272 (K! lectotype; isolectotypes ABD!, K!).

Native to:

Assam, Thailand

Orthosiphon glandulosus C.E.C.Fisch. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2001 Wenger, W. J. L. [272] K000911645 isolectotype
Jan 1, 2001 Wenger, W. J. L. [272] K000911646 isolectotype
Jan 1, 2001 Wenger, W. J. L. [272] K000911644 lectotype
Wenger, W. J. L. [272 A] K000911647

First published in Bull. Misc. Inform. Kew 1930: 240 (1930)

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.
  • Pooma, R. (ed.) (2005). A preliminary check-list of threatened plants in Thailand: 1-193. National Park, Wildlife and Plant Conservation Department, Bangkok.
  • Suddee, S., Paton, A.J. & Parnell, J.A.N. (2005). Taxonomic Revision of the tribe Ocimeae Dumort (Lamiaceae) in continental South East Asia III. Ociminae Kew Bulletin 60: 3-75.

Herbarium Catalogue Specimens
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Kew Backbone Distributions
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© Copyright 2017 World Checklist of Selected Plant Families.

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Kew Bulletin

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.