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This genus is accepted, and its native range is Europe to China.
A specimen from Kew's Herbarium

[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.

Morphology General Habit
Annual or biennial herb, with simple hairs
Morphology Leaves
Leaves toothed, petiolate
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid with many-flowered cymes; flowers pedicellate; bracts present; bracteoles present
Morphology Reproductive morphology Flowers Calyx
Calyx actinomorphic, 5-lobed, lobes subequal
Morphology Reproductive morphology Flowers Corolla
Corolla scarcely exceeding calyx, strongly 2-lipped, 4-lobed (1/3), pale pink, posterior lip long, hooded, anterior lip directed upwards, equal or slightly exceeding upper lip, corolla-tube exannulate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens very shortly exserted from corolla-tube, thecae weakly distinct, divaricate
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma lobes subequal to unequal
Morphology Reproductive morphology Fruits
Nutlets trigonous, truncate, with eglandular hairs at apex.
Note
2n = 24. one species: c. marrubiastrum (l.) ehrh. ex rchb.
Ecology
Steppes and disturbed grounds
Distribution
Native from Central Europe to Southwestern Siberia and W. China (Xinjiang).

Native to:

Altay, Austria, Belarus, Bulgaria, Central European Rus, Czechoslovakia, East European Russia, Germany, Greece, Italy, Kazakhstan, Kirgizstan, Krym, North Caucasus, Poland, Romania, South European Russi, Spain, Transcaucasus, Turkey, Ukraine, Uzbekistan, West Siberia, Xinjiang, Yugoslavia

Introduced into:

Alabama, France, Illinois, Kentucky, Minnesota, New York, Wisconsin

Chaiturus Ehrh. ex Willd. appears in other Kew resources:

First published in Fl. Berol. Prodr.: 200 (1787)

Accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • 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

  • Chaiturus Willd., Fl. Berol. Prodr. 200 (1787).
  • 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

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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