Campanula rotundifoliaL.

Common Harebell

WFO wfo-0000828550 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Campanula rotundifolia, photographed by Yann Kemper
fig. a Yann Kemper, CC0 1.0 / 2022-06-01 / obs. 202490280

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 = 1,971 observations

Flowering observations of Campanula rotundifolia by month
MonthObservations
Jan3
Feb0
Mar1
Apr2
May44
Jun206
Jul771
Aug523
Sep266
Oct109
Nov37
Dec9

Peak flowering in Jul, from 1,971 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 150 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.

  • Campanula allophylla Raf. ex A.DC.
  • Campanula angustifolia Lam.
  • Campanula antirrhina Schleich.
  • Campanula arcuata var. subrhomboidalis Schur
  • Campanula asturica Podlech
  • Campanula balcanica f. racemosa (Krašan) Hruby
  • Campanula bielzii Schur
  • Campanula bocconei Vill.
  • Campanula caballeroi Sennen & Losa
  • Campanula carnica var. racemosa Krašan
  • Campanula cespitosa var. bocconei (Vill.) Steud.
  • Campanula chinganensis A.I.Baranov
  • Campanula cinerea Hegetschw.
  • Campanula confertifolia Reut. ex Nyman
  • Campanula decloetiana Ortm.
  • Campanula delicatula Sennen & Losa
  • Campanula diversifolia Dumort.
  • Campanula filiformis Gilib.
  • Campanula grammosepala Vuk.
  • Campanula grammosepala var. cardiophylla Vuk.
  • Campanula grammosepala var. spathiphylla Vuk.
  • Campanula heterodoxa Vest
  • Campanula heterodoxa Bong.
  • Campanula heterophylla Gray

and 126 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.