Solanum chenopodioidesLam.

tall nightshade

WFO wfo-0001026988 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Solanum chenopodioides, photographed by Florencia Grattarola
fig. a Florencia Grattarola, CC BY 4.0 / 2022-05-21 / obs. 199472406

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 = 1,651 observations

Flowering observations of Solanum chenopodioides by month
MonthObservations
Jan89
Feb105
Mar181
Apr352
May143
Jun57
Jul75
Aug80
Sep165
Oct189
Nov111
Dec104

Peak flowering in Apr, from 1,651 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 18 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.

  • Solanum aguaraquiya Sendtn.
  • Solanum amaranthifolium Gillies ex Rusby
  • Solanum americanum var. baylisii D'Arcy
  • Solanum besseri Weinm.
  • Solanum chenopodifolium Dunal
  • Solanum gracile Dunal
  • Solanum gracile var. gracile
  • Solanum gracile var. microphyllum Dunal
  • Solanum gracilius Herter
  • Solanum isabellei Dunal
  • Solanum nigrum var. aspergilliflorum Sendtn.
  • Solanum nodiflorum var. microphyllum Hassl.
  • Solanum ottonis Hyl.
  • Solanum sublobatum Willd. ex Roem. & Schult.
  • Solanum subspatulatum Sendtn.
  • Solanum vile Bitter
  • Solanum virgatum Endl. ex Sendtn.
  • Witheringia chenopodioides (Lam.) J.Rémy

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.