Campanula scabrellaEngelm.

rough bellflower

WFO wfo-0000828812 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Campanula scabrella, photographed by joergmlpts
fig. a joergmlpts, CC BY 4.0 / 2021-07-13 / obs. 143482615
Campanula scabrella, photographed by joergmlpts
fig. b joergmlpts, CC BY 4.0 / obs. 143482850
Campanula scabrella, photographed by joergmlpts
fig. c joergmlpts, CC BY 4.0 / obs. 143476877
Campanula scabrella, photographed by Matt Berger
fig. d Matt Berger, CC BY 4.0 / obs. 89538363
Campanula scabrella, photographed by Matt Berger
fig. e Matt Berger, CC BY 4.0 / obs. 89538445
Campanula scabrella, photographed by Matt Berger
fig. f Matt Berger, CC BY 4.0 / obs. 52915454
Campanula scabrella, photographed by Matt Berger
fig. g Matt Berger, CC BY 4.0 / obs. 52978739
Campanula scabrella, photographed by Matt Berger
fig. h Matt Berger, CC BY 4.0 / obs. 52975509

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.

Native range 5 botanical countries

Regions where Campanula scabrella is native: California, Idaho, Montana, Oregon, Washington CaliforniaIdahoMontanaOregonWashington
Native distribution of Campanula scabrella, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
California CAL NORTHERN AMERICA
Idaho IDA
Montana MNT
Oregon ORE
Washington WAS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 48 in flower of 49 examined

Peak flowering in Jul. Each bar is the share of Campanula scabrella observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 48 of 49 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 10 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

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