1. Family: Lamiaceae Martinov
    1. Lavandula L.

      1. This genus is accepted, and its native range is Macaronesia to Medit. and India.

    [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
    Shrubs, subshrubs or short lived herbs, usually strongly aromatic, glabrous or indumentum variable, sometimes stellate
    Leaves
    Leaves entire or dissected
    Inflorescences
    Inflorescence a congested terminal spiciform thyrse, occasionally with coma of coloured bracts, usually distinctly pedunculate, simple or branched, verticillaster either a 3-9-flowered cincinnus with minute bracteoles or cyme 1-flowered, usually ebracteol
    Bracts
    Bracts persistent, opposite or spirally arranged
    Bracteoles
    Bracteoles minute or absent
    Flowers
    Flowers sessile or pedicellate
    Calyx
    Calyx persistent, ovoid-cylindrical, actinomorphic to 2-lipped, 5-lobed (3/2), lobes ± equal or posterior lip larger or modified into an appendage, tube 8-, 13- or 15- nerved, nerves to anterior lobes reaching and sometimes anastomosing at apex
    Corolla
    Corolla weakly or strongly 2-lipped, 5-lobed (2/3), blue-violet to purple or white, rarely blackish purple or yellowish, lobes spreading, variable in size, corolla-tube either just exceeding or up to 3 x longer than calyx
    Stamens
    Stamens 4, declinate, usually didynamous, included within tube, anterior pair longer
    Anthers
    Filaments glabrous, anthers reniform, confluent
    Stigma
    Stigma-lobes, if present, often complanate or stigma capitate
    Fruits
    Nutlets variable in shape, colour and size, with either small basal abscission scar or lateral scar (areole) 0.25 to 0.75 x length of nutlet, usually mucilaginous.
    Note
    2n=18, 24, 30, 36, 42, 54.  Circa 36 species. A revised infrageneric classification of three subgenera and seven sections has been proposed (Upson 1997).
    Distribution
    From Macaronesia, Mediterranean basin, Northern and Northeastern Africa, Southwestern Asia, Arabian Peninsula, Central and Southern India. Introduced to Eastern Europe, Australia and New Zealand
    [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. Flora of Tropical East Africa. 2009

    Habit
    Subshrubs
    Leaves
    Leaves entire or dissected
    Inflorescences
    Inflorescence a congested terminal spike-like thyrse, sometimes with a coma of brightly coloured bracts; verticils 2–many-flowered
    Calyx
    Calyx actinomorphic or 2-lipped, 5-lobed with lobes equal or with posterior lobe larger
    Corolla
    Corolla weakly or strongly 2-lipped; lobes spreading
    Stamens
    Stamens 4, declinate, included in corolla tube.
    [LKGF]
    Use
    A number of species, principally L. angustifolia Mill. and L. x intermedia Emeric ex Loisel., are commercially important for their essential oils, used in the perfumery and fragrance industry, aromotherapy and as ornamentals.
    [FTEA]
    Use
    Native to Mediterranean climates from Macaronesia to South India, widely cultivated as an ornamental, for essential oils and for medicinal use

    Images

    Distribution

    Native to:

    Algeria, Baleares, Bangladesh, Canary Is., Cape Verde, Chad, Corse, Cyprus, Djibouti, East Aegean Is., Egypt, Eritrea, Ethiopia, France, Greece, Gulf States, India, Iran, Italy, Kriti, Lebanon-Syria, Libya, Madeira, Mali, Mauritania, Morocco, Niger, Oman, Palestine, Portugal, Sardegna, Saudi Arabia, Sicilia, Sinai, Socotra, Somalia, Spain, Sudan, Tunisia, Turkey, Turkey-in-Europe, Western Sahara, Yemen

    Introduced into:

    Austria, Azores, Bulgaria, Krym, New Zealand North, New Zealand South, Norfolk Is., Venezuela, Vermont, West Himalaya, Yugoslavia

    Lavandula L. appears in other Kew resources:

    First published in Sp. Pl.: 572 (1753)

    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
    • Andrews, S. (2004).
    • Gunther, E. (1949). The essential oils. Individual essential oils of the plant families Rutaceae and Labiatae, vol. 3.
    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
    • Upson, doctoral thesis, Reading U., unpublished (1997).
    • Isinia Rech.f., Oesterr. Bot. Z. 99: 47 (1952).
    • Chaytor, J. Linn. Soc., Bot. 51: 153-204 (1937)
    • Sabaudia Buscal. & Muschl., Bot. Jahrb. Syst. 49: 491 (1913).
    • Chaetostachys Benth. in N.Wallich, Pl. Asiat. Rar. 2: 19 (1830)., (1831).
    • Styphonia Medik., Staatsw. Vorles. Churpf. Phys. Oek. Ges. 1: 230 (1791).
    • Fabricia Adans., Fam. Pl. 2: 188 (1763).
    • Stoechas Mill., Gard. Dict. Abr. ed. 4 (1754).
    • Lavandula L., Sp. Pl. 2: 572 (1753)
    • Lavendula L., Syst. Nat. (1735), orth. var.

    Sources

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