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This genus is accepted, and its native range is Central & E. Asia, N. America.
Agastache mexicana

[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
Perennial herbs, aromatic
Morphology Leaves
Leaves simple, dentate
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid, terminal, spike-like or panicle-like, cymes pedunculate or sessile
Morphology Reproductive morphology Inflorescences Bracts
Bracts reduced, lower often leaf-like
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles subulate
Morphology Reproductive morphology Flowers Calyx
Calyx tubular or campanulate, straight, indistinctly 2-lipped, 5-lobed (3/2), lobes equal, throat open
Morphology Reproductive morphology Flowers Corolla
Corolla strongly 2-lipped, 5-lobed (2/3), pink, blue to violet or white, posterior lip straight, anterior lip with median lobe widest, spreading, entire or undulate, lateral lobes straight, tube gradually dilating to throat
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens much exserted or included, filaments parallel or posterior pair antrorsely bent, thecae parallel
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma lobes equal, spreading
Morphology Reproductive morphology Flowers Disc
Disc 4-lobed
Morphology Reproductive morphology Fruits
Nutlets ellipsoid to obovoid, smooth with apex hairy, areole oblong or orbicular.
Note
2n = 18. About 22 species. Sectional treatment after Sanders (1987).   Sect. Agastache: Stamens long-exserted, filaments of posterior stamens antrorsely bent, and crossing anterior pair.  Seven species in U.S.A. and Canada, one species in Asia.   Sect. Brittonastrum (Briq.) Lint &
Ecology
Mountains or deserts
Distribution
Native to: Russian Far East, China, Eastern Asia, Subarctic America, Western and Eastern Southern Canada, U.S.A., Mexico. Introduced to Indo-China

Native to:

Alabama, Alberta, Amur, Arizona, Arkansas, British Columbia, California, China North-Central, Colorado, Connecticut, Georgia, Idaho, Illinois, Indiana, Iowa, Japan, Kansas, Kentucky, Khabarovsk, Korea, Kuril Is., Manchuria, Manitoba, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Jersey, New Mexico, New York, North Carolina, North Dakota, Northwest Territorie, Oklahoma, Ontario, Oregon, Primorye, Québec, Saskatchewan, South Dakota, Taiwan, Tennessee, Texas, Utah, Vermont, Washington, Wisconsin, Wyoming

Introduced into:

Austria, Central European Rus, China South-Central, China Southeast, Delaware, Germany, Laos, New Hampshire, Pennsylvania, Sweden, Tibet, Vietnam

Agastache Clayton ex Gronov. appears in other Kew resources:

First published in Fl. Virgin., ed. 2: 88 (1762)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. 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

  • Agastache J. Clayton ex Gronov., Fl. Virgin.: 88 (1762)
  • Brittonastrum Briq. in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 4(3A): 234 (1896).
  • Budantsev, Bot. Zhurn. 78, 2: 106-115 (1993), rev.
  • Dekinia M.Martens & Galeotti, Bull. Acad. Roy. Sci. Bruxelles 11(2): 195 (1844).
  • Flessera Adans., Fam. Pl. 2: 192 (1763).
  • 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
  • Lint & Epling, Amer. Midl. Natur. 33: 207-230 (1945), rev.
  • Lophanthus Benth., Edwards's Bot. Reg. 15: t. 1282 (1829), nom. illeg.
  • Sanders, Syst. Bot. Mon. 15: 1-92 (1987), rev., one sect.

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