Malacothamnus fasciculatus(Nutt. ex Torr. & A.Gray) Greene

southern coastal bushmallow

WFO wfo-0001077089 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Malacothamnus fasciculatus, photographed by Amthinkia
fig. a Amthinkia, CC0 1.0 / 2022-06-08 / obs. 205308689
Malacothamnus fasciculatus, photographed by Vasily Reinkymov
fig. b Vasily Reinkymov, CC0 1.0 / obs. 196087114
Malacothamnus fasciculatus, photographed by Jim Riley
fig. c Jim Riley, CC0 1.0 / obs. 203533741
Malacothamnus fasciculatus, photographed by Steve Addison
fig. d Steve Addison, CC BY 4.0 / obs. 204148406
Malacothamnus fasciculatus, photographed by Madeleine Claire
fig. e Madeleine Claire, CC BY 4.0 / obs. 203601762
Malacothamnus fasciculatus, photographed by Vasily Reinkymov
fig. f Vasily Reinkymov, CC0 1.0 / obs. 196086772
Malacothamnus fasciculatus, photographed by Millie Basden
fig. g Millie Basden, CC BY 4.0 / obs. 190419526
Malacothamnus fasciculatus, photographed by Dan Horowitz
fig. h Dan Horowitz, CC0 1.0 / obs. 192608847

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 = 2,974 observations

Peak flowering in May, from 2,974 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 27 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.

  • Malacothamnus fasciculatus subsp. catalinensis (Eastw.) Thorne
  • Malacothamnus fasciculatus subsp. laxiflorus (A.Gray) Thorne
  • Malacothamnus fasciculatus subsp. splendidus (Kellogg) Abrams
  • Malacothamnus fasciculatus var. splendidus (Kellogg) Abrams
  • Malacothamnus nesioticus (B.L.Rob.) Abrams
  • Malacothamnus parishii (Eastw.) Kearney
  • Malva fasciculata Nutt. ex Torr. & A.Gray
  • Malvastrum catalinense Eastw.
  • Malvastrum fasciculatum (Nutt. ex Torr. & A.Gray) Greene
  • Malvastrum fasciculatum var. catalinense (Eastw.) McMinn
  • Malvastrum fasciculatum var. laxiflorum (A.Gray) Munz & I.M.Johnst.
  • Malvastrum fasciculatum var. nesioticum (B.L.Rob.) McMinn
  • Malvastrum fasciculatum var. typicum Estes
  • Malvastrum laxiflorum (A.Gray) Eastw.
  • Malvastrum laxiflorum (A.Gray) Davidson & Moxley
  • Malvastrum nesioticum B.L.Rob.
  • Malvastrum parishii Eastw.
  • Malvastrum splendidum Kellogg
  • Malvastrum thurberi A.Gray
  • Malvastrum thurberi var. laxiflorum A.Gray
  • Malveopsis fasciculata (Nutt. ex Torr. & A.Gray) Kuntze
  • Malveopsis splendida Kuntze
  • Sphaeralcea fasciculata (Nutt. ex Torr. & A.Gray) Arthur
  • Sphaeralcea fasciculata var. laxiflora (A.Gray) Jeps.

and 3 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.