Rudbeckia laciniataL.

cutleaf coneflower

WFO wfo-0000029196 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Rudbeckia laciniata, photographed by Zakqary Roy
fig. a Zakqary Roy, CC BY 4.0 / 2022-06-02 / obs. 202781946
Rudbeckia laciniata, photographed by Ryan Sorrells
fig. b Ryan Sorrells, CC BY 4.0 / obs. 203401130
Rudbeckia laciniata, photographed by Gabriel Mayrhofer
fig. c Gabriel Mayrhofer, CC0 1.0 / obs. 203851607
Rudbeckia laciniata, photographed by Joseph Aubert
fig. d Joseph Aubert, CC BY 4.0 / obs. 201802766
Rudbeckia laciniata, photographed by Yann Kemper
fig. e Yann Kemper, CC0 1.0 / obs. 192567427
Rudbeckia laciniata, photographed by John Abrams
fig. f John Abrams, CC BY 4.0 / obs. 191937365
Rudbeckia laciniata, photographed by Eric Knight
fig. g Eric Knight, CC BY 4.0 / obs. 191911167
Rudbeckia laciniata, photographed by Ryan Sorrells
fig. h Ryan Sorrells, CC BY 4.0 / obs. 191025451

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 4,234 observations

Peak flowering in Aug, from 4,234 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 13 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.

  • Helianthus laciniatus (L.) E.H.L.Krause
  • Obeliscotheca ampla Nieuwl. & Lunell
  • Rudbeckia ampla A.Nelson
  • Rudbeckia digitata Mill.
  • Rudbeckia heterophylla Torr. & A.Gray
  • Rudbeckia laciniata subsp. ampla (A.Nelson) W.A.Weber
  • Rudbeckia laciniata subsp. laciniata
  • Rudbeckia laciniata var. digitata Fiori
  • Rudbeckia laciniata var. gaspereauensis Fernald
  • Rudbeckia laciniata var. hortensia L.H.Bailey
  • Rudbeckia laciniata var. laciniata
  • Rudbeckia pinnata Michx.
  • Rudbeckia quinata Mill.

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.