Calendula officinalisL.

pot marigold

WFO wfo-0000007455 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Calendula officinalis, photographed by Yann Kemper
fig. a Yann Kemper, CC0 1.0 / 2022-06-03 / obs. 203016019
Calendula officinalis, photographed by Mattia Menchetti
fig. b Mattia Menchetti, CC BY 4.0 / obs. 195688309
Calendula officinalis, photographed by Jon Mortin
fig. c Jon Mortin, CC BY 4.0 / obs. 193853510
Calendula officinalis, photographed by Jaco Grundling
fig. d Jaco Grundling, CC0 1.0 / obs. 192767085
Calendula officinalis, photographed by Jenny Saito
fig. e Jenny Saito, CC BY 4.0 / obs. 196726732
Calendula officinalis, photographed by Pavel Kacl
fig. f Pavel Kacl, CC BY 4.0 / obs. 193851189
Calendula officinalis, photographed by Jon Sullivan
fig. g Jon Sullivan, CC BY 4.0 / obs. 195557372
Calendula officinalis, photographed by Jon Sullivan
fig. h Jon Sullivan, CC BY 4.0 / obs. 195557339

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 = 1,670 observations

Peak flowering in Apr, from 1,670 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 10 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.

  • Calendula aurantiaca Kotschy ex Boiss.
  • Calendula eriocarpa DC.
  • Calendula hydruntina Lanza
  • Calendula officinalis f. pleniflora Moldenke
  • Calendula officinalis var. officinalis
  • Calendula officinalis var. prolifera Hort.
  • Calendula prolifera hort. ex Steud.
  • Calendula santamariae Font Quer
  • Calendula sinuata var. aurantiaca (Kotschy ex Boiss.) Boiss.
  • Caltha officinalis (L.) Moench

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.