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This genus is accepted, and its native range is S. Central U.S.A.
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 herbs
Morphology Leaves
Leaves subsessile, entire with margins long-ciliate
Morphology Reproductive morphology Inflorescences
Inflorescence of verticillasters, cymes 1-4-flowered, in axils of bracts, forming terminal spiciform, congested or interrupted thyrse
Morphology Reproductive morphology Inflorescences Bracts
Bracts leaf-like
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles long-ciliate, curved, purple-tinged
Morphology Reproductive morphology Flowers Calyx
Calyx often purple-tinged, 2-lipped, 5-lobed (3/2), lobes elongate, long-ciliate, anterior narrower with deeper sinus, tube 15-nerved, conspicuously ribbed, cylindrical, weakly gibbous, slightly curved, annulate at throat
Morphology Reproductive morphology Flowers Corolla
Corolla lilac to purple, 2-lipped, 5-lobed (2/3), posterior lip flat, anterior longer and broader, tube narrowly cylindrical, slightly gibbous towards base, annulate above gynoecium
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2, posterior pair absent, anterior slightly exserted, filaments prolonged into small tooth above articulation with anther, thecae divaricate at 180°, extending parallel to corolla-tube axis, distinct but anthers connate at point of attachment, con
Morphology Reproductive morphology Flowers Gynoecium Style
Style hairy
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma-lobes subequal, flattened, triangular
Morphology Reproductive morphology Flowers Disc
Disc symmetrical
Morphology Reproductive morphology Fruits
Nutlets ellipsoid-obovate, smooth, pale brown, glabrous, weakly mucilaginous.
Note
2n = 26.  One species, R. ciliatus (Benth.) Epling, or possibly two
Distribution
Confined to Texas, U.S.A.
Ecology
Open, sandy areas.

Native to:

Texas

Rhododon Epling appears in other Kew resources:

First published in Repert. Spec. Nov. Regni Veg. Beih. 115: 14 (1939)

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
  • Rhododon Epling, Rep. Spec. Nov. Regn. Veg. Beih. 115: 14 (1939).

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