Delphinium carolinianumWalter

Wild Blue Larkspur

WFO wfo-0000639857 Accepted WFO 2026-06 7 photographs CC0 / CC BY

Plate 1 figs. a–g

Delphinium carolinianum, photographed by Sue Ann Kendall
fig. a Sue Ann Kendall, CC BY 4.0 / 2022-05-28 / obs. 201302769
Delphinium carolinianum, photographed by Cody Stricker
fig. b Cody Stricker, CC BY 4.0 / obs. 195718218
Delphinium carolinianum, photographed by Tyler Cannon
fig. c Tyler Cannon, CC BY 4.0 / obs. 133957270
Delphinium carolinianum, photographed by Eric Knight
fig. d Eric Knight, CC BY 4.0 / obs. 197607968
Delphinium carolinianum, photographed by Thomas Koffel
fig. e Thomas Koffel, CC BY 4.0 / obs. 132372894
Delphinium carolinianum, photographed by brybrysciguy
fig. f brybrysciguy, CC BY 4.0 / obs. 73800648
Delphinium carolinianum, photographed by Eric Knight
fig. g Eric Knight, CC BY 4.0 / obs. 78702847

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 = 675 observations

Peak flowering in May, from 675 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 35 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.

  • Delphidium azureum Raf.
  • Delphinastrum carolinianum (Walter) Nieuwl.
  • Delphinastrum vimineum Nieuwl.
  • Delphinastrum virescens (Nutt.) Nieuwl.
  • Delphinium albescens Rydb.
  • Delphinium americanum Mill.
  • Delphinium azureum Michx.
  • Delphinium azureum var. laxiflorum Huth
  • Delphinium azureum var. nortonianum (Mack. & Bush) E.J.Palmer & Steyerm.
  • Delphinium azureum var. vimineum (D.Don) A.Gray ex K.C.Davis
  • Delphinium azureum var. vimineum A.Gray
  • Delphinium azureum var. virescens (Nutt.) Huth
  • Delphinium camporum Greene
  • Delphinium camporum var. macroseratilis K.C.Davis
  • Delphinium camporum var. penardii (Huth) K.C.Davis
  • Delphinium carolinianum subsp. carolinianum
  • Delphinium carolinianum subsp. penardii (Huth) M.J.Warnock
  • Delphinium carolinianum var. carolinianum
  • Delphinium carolinianum var. crispum L.M.Perry
  • Delphinium carolinianum var. nortonianum (Mack. & Bush) L.M.Perry
  • Delphinium carolinianum var. penardii (Huth) A.Nelson
  • Delphinium macroseratilis Rydb.
  • Delphinium nortonianum Mack. & Bush
  • Delphinium penardii Huth

and 11 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.