Helianthus tuberosusL.

Jerusalem artichoke

WFO wfo-0000091975 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Helianthus tuberosus, photographed by Lauu
fig. a Lauu, CC BY 4.0 / 2022-03-12 / obs. 182608549
Helianthus tuberosus, photographed by Силаева Татьяна Борисовна
fig. b Силаева Татьяна Борисовна, CC0 1.0 / obs. 166827487
Helianthus tuberosus, photographed by Patrick Hacker
fig. c Patrick Hacker, CC BY 4.0 / obs. 181859556
Helianthus tuberosus, photographed by Kenta Nakahashi
fig. d Kenta Nakahashi, CC BY 4.0 / obs. 168076558
Helianthus tuberosus, photographed by Dmitriy Bochkov
fig. e Dmitriy Bochkov, CC BY 4.0 / obs. 200194496
Helianthus tuberosus, photographed by Christian Berg
fig. f Christian Berg, CC BY 4.0 / obs. 198325316
Helianthus tuberosus, photographed by Pavel Kacl
fig. g Pavel Kacl, CC BY 4.0 / obs. 166160865
Helianthus tuberosus, photographed by mami_t_t
fig. h mami_t_t, CC BY 4.0 / obs. 164172140

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 = 2,172 observations

Peak flowering in Sep, from 2,172 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 5 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 esculentus Warsz.
  • Helianthus serotinus Tausch
  • Helianthus tomentosus Michx.
  • Helianthus tuberosus f. tuberosus
  • Helianthus tuberosus var. subcanescens A.Gray

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.