1. Family: Lamiaceae Martinov
    1. Hyssopus L.

      1. This genus is accepted, and its native range is Temp. Eurasia.

    [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
    Perennial subshrub, aromatic
    Leaves
    Leaves simple, entire, usually glabrous
    Inflorescences
    Inflorescence of 6-many-flowered verticillasters merging to form a terminal, usually ± secund, spiciform thyrse
    Bracts
    Bracts leaf-like
    Flowers
    Flowers very shortly pedicellate, bracteolate
    Calyx
    Calyx 2-lipped (3/2), ± tubular, 15-nerved, lobes equal, deltoid, acuminate or aristate, ciliate, with thickened fold at each sinus
    Corolla
    Corolla 2-lipped, 5-lobed (2/3), violet to whitish, posterior lip deeply emarginate, concave, patent, anterior lip with median lobe ± suborbicular, emarginate, curved downwards, lateral lobes rounded and smaller, tube cylindrical
    Stamens
    Stamens 4, inserted in middle of tube, curved, exserted, thecae divergent, confluent, connective ± triangular
    Stigma
    Stigma-lobes equal, ± acicular
    Fruits
    Nutlets ± ovoid, smooth to papillose, puberulent, with mucilaginous cells.
    Note
    2n =12.  Two species
    Distribution
    In Europe, Northwestern Africa, Central and Southwestern Asia, including China. Introduced to Northern Europe and North America.

    Images

    Distribution

    Native to:

    Afghanistan, Albania, Algeria, Altay, Austria, Belarus, Bulgaria, Buryatiya, Central European Rus, Czechoslovakia, France, Greece, Hungary, Iran, Italy, Kazakhstan, Kirgizstan, Krym, Mongolia, Morocco, North Caucasus, Pakistan, South European Russi, Spain, Switzerland, Tadzhikistan, Transcaucasus, Turkey, Ukraine, West Siberia, Xinjiang, Yugoslavia

    Introduced into:

    Baltic States, Belgium, Vermont

    Hyssopus L. appears in other Kew resources:

    First published in Sp. Pl.: 569 (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

    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
    • Hyssopus L., Sp. Pl. 2: 569 (1753).

    Sources

    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