Ruellia erythropus(Nees) Lindau

WFO wfo-0000401861 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Ruellia erythropus, photographed by Eduardo Luis Beltrocco
fig. a Eduardo Luis Beltrocco, CC BY 4.0 / 2019-09-08 / obs. 123901958
Ruellia erythropus, photographed by Hugo Hulsberg
fig. b Hugo Hulsberg, CC0 1.0 / obs. 176070751
Ruellia erythropus, photographed by Hugo Hulsberg
fig. c Hugo Hulsberg, CC0 1.0 / obs. 176070681
Ruellia erythropus, photographed by Hugo Hulsberg
fig. d Hugo Hulsberg, CC0 1.0 / obs. 176764212
Ruellia erythropus, photographed by Hugo Hulsberg
fig. e Hugo Hulsberg, CC0 1.0 / obs. 176479381
Ruellia erythropus, photographed by Hugo Hulsberg
fig. f Hugo Hulsberg, CC0 1.0 / obs. 169928382
Ruellia erythropus, photographed by Hugo Hulsberg
fig. g Hugo Hulsberg, CC0 1.0 / obs. 175825781
Ruellia erythropus, photographed by Hugo Hulsberg
fig. h Hugo Hulsberg, CC0 1.0 / obs. 169928303

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 12 botanical countries

Regions where Ruellia erythropus is native: Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Argentina Northeast, Argentina Northwest, Bolivia, Brazil South, Brazil Southeast, Brazil West-Central, Paraguay, Venezuela Mexico GulfMexico NortheastMexico SoutheastMexico SouthwestArgentina NortheastArgentina NorthwestBoliviaBrazil SouthBrazil SoutheastBrazil West-CentralParaguayVenezuela
Native distribution of Ruellia erythropus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Argentina Northeast AGE SOUTHERN AMERICA
Argentina Northwest AGW
Bolivia BOL
Brazil South BZS
Brazil Southeast BZL
Brazil West-Central BZC
Paraguay PAR
Venezuela VEN
Mexico Gulf MXG NORTHERN AMERICA
Mexico Northeast MXE
Mexico Southeast MXT
Mexico Southwest MXS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 10 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Blechum mexicanum Oerst.
  • Blechum tweediei Nees
  • Pentstemonacanthus modestus Nees
  • Ruellia mattogrossensis Lindau
  • Ruellia modesta Mart. ex Nees
  • Ruellia pubiflora Griseb.
  • Ruellia tweediei (Nees) T.Anderson ex Morong & Britton
  • Ruellia tweedii (Nees) T.Anderson ex Morong & Britton
  • Ruellia velascana Lindau
  • Siphonacanthus erythropus Nees

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.