Ruellia ciliatifloraHook.

hairyflower ruellia

WFO wfo-0000401991 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Ruellia ciliatiflora, photographed by ritirene
fig. a ritirene, CC BY 4.0 / 2021-07-28 / obs. 146814787
Ruellia ciliatiflora, photographed by Alexis López Hernández
fig. b Alexis López Hernández, CC BY 4.0 / obs. 82625026
Ruellia ciliatiflora, photographed by Alexis López Hernández
fig. c Alexis López Hernández, CC BY 4.0 / obs. 108097843
Ruellia ciliatiflora, photographed by Alexis López Hernández
fig. d Alexis López Hernández, CC BY 4.0 / obs. 108474560
Ruellia ciliatiflora, photographed by Arturo Santos
fig. e Arturo Santos, CC BY 4.0 / obs. 92691796
Ruellia ciliatiflora, photographed by Jose Luis Navarro
fig. f Jose Luis Navarro, CC BY 4.0 / obs. 146922847
Ruellia ciliatiflora, photographed by Hugo Hulsberg
fig. g Hugo Hulsberg, CC0 1.0 / obs. 175082126
Ruellia ciliatiflora, photographed by stinger
fig. h stinger, CC BY 4.0 / obs. 187550694

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.

Flowering n = 154 observations

Peak flowering in Apr, from 154 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 33 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.

  • Arrhostoxylum ciliatiflorum (Hook.) Nees
  • Cryphiacanthus tubiflorus Oerst.
  • Cryphiacanthus viscosus Oerst.
  • Dipteracanthus nudiflorus Engelm. & A.Gray
  • Ruellia congesta (Leonard) Tharp & F.A.Barkley
  • Ruellia davisiorum Tharp & F.A.Barkley
  • Ruellia glabrata (Leonard) Tharp & F.A.Barkley
  • Ruellia glabrata var. shrevei Tharp & F.A.Barkley
  • Ruellia gooddingiana A.Nelson
  • Ruellia insularis (Leonard) Tharp & F.A.Barkley
  • Ruellia lorentziana Griseb.
  • Ruellia lorentziana var. paraguariensis Hassl.
  • Ruellia lorentziana var. parvifolia Hassl.
  • Ruellia muelleri var. grandiflora (Leonard) Tharp & F.A.Barkley
  • Ruellia nudiflora (Engelm. & A.Gray) Urb.
  • Ruellia nudiflora var. congesta Leonard
  • Ruellia nudiflora var. glabrata Leonard
  • Ruellia nudiflora var. grandiflora Leonard
  • Ruellia nudiflora var. hispidula Shinners
  • Ruellia nudiflora var. insularis Leonard
  • Ruellia nudiflora var. mirandae Tharp & F.A.Barkley
  • Ruellia nudiflora var. occidentalis (A.Gray) Leonard
  • Ruellia nudiflora var. runyonii (Tharp & F.A.Barkley) B.L.Turner
  • Ruellia nudiflora var. yucatana Leonard

and 9 more.

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.

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