1. Family: Lamiaceae Martinov
    1. Pogostemon Desf.

      1. This genus is accepted, and its native range is Cameroon to Chad and S. Tropical Africa, Tropical & Subtropical Asia to NW. Pacific.

    [LKGF]

    Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

    Habit
    Annual or perennial herbs or shrubs, with simple and/or branched hairs
    Leaves
    Leaves opposite or in whorls of 3-12
    Inflorescences
    Inflorescence thyrsoid
    Bracts
    Bracts small
    Bracteoles
    Bracteoles small
    Calyx
    Calyx 5-lobed (3/2), lobes subequal or anterior longer
    Corolla
    Corolla weakly 2-lipped, 4-lobed (3/1), purple or white, not hooded, anterior lip narrow, entire
    Stamens
    Stamens equal or posterior pair slightly longer, spreading or subdeclinate, exserted from the corolla, filaments usually bearded along centre with moniliform hairs, anthers about as long as broad, thecae confluent
    Stigma
    Stigma-lobes equal to subequal
    Fruits
    Nutlets 1- 4, 0.5-1.1 x 0.3-1.0 mm, rounded at apex, glabrous, often glossy.
    Note
    2n = 12, 32, 34, 60, 64, 72.  About 75 species
    Ecology
    Mostly in moist to mesic forest or damp places
    Distribution
    From Southern and Southeastern Asia to China, a few species in South tropical Africa, Australia, Taiwan and Japan.
    [FTEA]

    Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Pogostemon, R.M. Polhill. Flora of Tropical East Africa. 2009

    Habit
    Herbs or shrubs, sometimes aquatic, with simple and/or branched hairs
    Stem
    Stems terete or elsewhere quadrangular
    Leaves
    Leaves in whorls of 3–12 or elsewhere opposite
    Inflorescences
    Inflorescence thyrsoid; bracts and bracteoles small
    Calyx
    Calyx 5-lobed, the lobes subequal or anterior pair longer
    Corolla
    Corolla purple or white, 4-lobed, weakly 2-lipped, with a group of 3 posterior lobes and a single anterior lobe
    Stamens
    Stamens subequal or elsewhere posterior pair slightly longer, spreading or subdeclinate, inserted near top of the corolla tube, exserted; filaments bearded on the middle part; anthers ± as long as broad, appearing unilocular, the thecae confluent
    Ovary
    Ovary deeply 4-lobed, style gynobasic, 2-lobed; lobes equal or elswhere unequal
    Fruits
    Nutlets 1–4, rounded at apex, glabrous, often glossy.

    Images

    Distribution

    Native to:

    Andaman Is., Angola, Assam, Bangladesh, Borneo, Cambodia, Cameroon, Central African Repu, Chad, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Korea, Laos, Lesser Sunda Is., Malawi, Malaya, Maluku, Manchuria, Marianas, Mozambique, Myanmar, Nansei-shoto, Nepal, New Guinea, Nicobar Is., Northern Territory, Pakistan, Philippines, Primorye, Queensland, Sri Lanka, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Tibet, Vietnam, West Himalaya, Western Australia, Zambia

    Introduced into:

    Fiji, Samoa, Seychelles, Tonga, Trinidad-Tobago

    Pogostemon Desf. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sands, M.J.S. [1061], Papua New Guinea K000932250
    Jones, B.L. [466], Malaysia K000824771
    s.coll. [Cat. no. s.n.], India K001132518
    s.coll. [Cat. no. 7123] K001126754

    First published in Mém. Mus. Hist. Nat. 2: 154 (1815)

    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.

    Literature

    Flora of Tropical East Africa
    • Kubitzki, Fam. Gen. Fl. Pl. 7: 214 (2004)
    • J.L.S. 128: 159–183 (1998)
    • Bull. Nat. Hist. Mus. Lond., Bot. 27: 77–148 (1997)
    • Bull. Brit. Mus. Nat. Hist., Bot. 10: 1–89 (1982)
    • Mém. Mus. Hist. Nat. Paris 2: 154, t. 6 (1815)
    Lamiaceae Key Genus Fact Sheets
    • Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
    • Ingrouille & Bhatti, Bot. J. Linn. Soc. 128: 159-183 (1998).
    • Bhatti & Ingrouille, Bull. Nat. Hist. Mus. Lond. (Bot.) 27, 2: 77-148 (1997)
    • Anuragia Raizada, Suppl. Duthie's Fl. Upper Gangetic Plain: 219 (1976), nom. illeg.
    • Dysophylla El Gazzar & L.Watson ex Airy Shaw, Taxon 16: 190 (1967), nom. illeg.
    • Eusteralis Raf., Fl. Tellur. 2: 95 (1837).
    • Chotekia Opiz & Corda, Flora 13: t. 33 (1830).
    • Dysophylla Blume, Bijdr.: 826 (1826).
    • Wensea J.C.Wendl., Coll. Pl. 3: 24 (1819).
    • Pogostemon Desf., Mem. Mus. Hist. Mat. Paris 2: 154 (1815)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Lamiaceae Key Genus Fact Sheets
    Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, Kew
    http://creativecommons.org/licenses/by/3.0