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This genus is accepted, and its native range is W. & S. Central U.S.A., Mexico.
Monardella nana

[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 perennial herbs, sometimes rhizomatous, usually aromatic, gland-dotted
Morphology Leaves
Leaves entire or toothed
Morphology Reproductive morphology Inflorescences
Inflorescence thyrsoid, forming a short, terminal capitulum
Morphology Reproductive morphology Inflorescences Bracts
Bracts forming an involucre, surrounding inflorescence, outer pair often leaf-like, inner usually broad, scarious and often conspicuously veined or coloured
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles ?absent
Morphology Reproductive morphology Flowers Calyx
Calyx ± actinomorphic, 5-lobed (3/2), lobes subequal, triangular, tube cylindrical, longer than lobes, 10-15-nerved, sometimes accrescent, glabrous within throat
Morphology Reproductive morphology Flowers Corolla
Corolla purple, pink or white, 2-lipped, 5-lobed (2/3), lobes narrow, posterior lip erect, distinctly 2-lobed, anterior lip recurved, 3-lobed almost to base, 2/3 to 1/5 length of tube, tube straight
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, divergent, exserted, posterior pair usually shorter than anterior pair, filaments hairy or glabrous, thecae parallel to divergent or divaricate and then often confluent towards apex
Morphology Reproductive morphology Flowers Disc
Disc symmetrical
Morphology Reproductive morphology Fruits
Nutlets oblong-ovoid, smooth.
Note
2n = 42.  About 30 species.  Epling (1925) divided the genus into two subgenera: subg.  Monardella (as subg. Pycnanthae) and subg. Macranthae Briq., based on relative length of corolla lobes and tube and on calyx length.
Distribution
Western United States to northern Mexico.
Ecology
Rocky or sandy areas, desert scrubs, sagebrush, chaparral, woodland or montane forests.
Conservation
Many species have restricted ranges with specialized soil conditions.

Native to:

Arizona, British Columbia, California, Colorado, Idaho, Mexico Northwest, Montana, Nevada, New Mexico, Oregon, Utah, Washington

Monardella Benth. appears in other Kew resources:

First published in Labiat. Gen. Spec.: 331 (1834)

Accepted by

  • Elvin, M.A. & Sanders, A.C. (2009). Nomenclatural changes for Monardella (Lamiaceae) in California Novon 19: 315-343.
  • 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

  • Epling, Ann. Miss. Bot. Gard. 12: 1-106 (1925), rev.
  • 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
  • Jokerst, in Hickman (ed.) The Jepson Manual of Higher Plants of California: 718-722 (1993), rev. reg..
  • Madronella Greene, Leafl. Bot. Observ. Crit. 1: 168 (1906).
  • Monardella Benth., Lab. Gen. et Sp.: 331 (1834)

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