Marrubium L.

First published in Sp. Pl.: 583 (1753)
This genus is accepted
The native range of this genus is Macaronesia to Temp. Eurasia.

Descriptions

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.

Morphology General Habit
Annual or perennial herbs, with at least some branched hairs and often also with simple hairs
Morphology Leaves
Leaves usually toothed, petiolate
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid or rarely racemoid
Morphology Reproductive morphology Flowers Calyx
Calyx 5-15 (-30)-lobed, lobes equal or variously unequal, usually ± spiny, sometimes uncinate
Morphology Reproductive morphology Flowers Corolla
Corolla 2-lipped, 5-lobed (2/3), posterior lip 2-lobed, long or moderately long, flat or almost so, tube shorter than calyx
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens included in corolla-tube, thecae confluent or subconfluent
Morphology Reproductive morphology Flowers Gynoecium Style
Style included in corolla-tube, stigma-lobes unequal or subequal
Morphology Reproductive morphology Fruits
Nutlets rounded or subtruncate at apex, glabrous or with sessile glands at apex.
Note
2n = 20, 26, 28, 34, 54.  About 40 species.
Ecology
Mainly in rather dry places
Distribution
Europe and Northern Africa to Pakistan, with M. vulgare L. more widespread and introduced elsewhere.
[LKGF]

Sources

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. 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