Solanum rostratumDunal

buffalo-bur

WFO wfo-0001030906 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Solanum rostratum, photographed by izzykracken
fig. a izzykracken, CC0 1.0 / 2022-06-04 / obs. 203440330

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 = 1,510 observations

Flowering observations of Solanum rostratum by month
MonthObservations
Jan13
Feb7
Mar15
Apr44
May109
Jun240
Jul274
Aug268
Sep304
Oct146
Nov70
Dec20

Peak flowering in Sep, from 1,510 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.

  • Androcera lobata Nutt.
  • Androcera rostrata (Dunal) Rydb.
  • Ceranthera heterandra (Pursh) Raf.
  • Nycterium flavum Lindl.
  • Nycterium heterandrum (Pursh) Heynh.
  • Nycterium lobatum (Nutt.) Sweet
  • Nycterium luteum Steud.
  • Nycterium rostratum (Dunal) Link
  • Solanum bejarense Moric. ex Dunal
  • Solanum chrysacanthum Dunal
  • Solanum cornutum Dunal
  • Solanum heterandrum Pursh
  • Solanum heterodoxum Andrieux ex Dunal
  • Solanum hexandrum Steud.
  • Solanum hexandrum var. hexandrum
  • Solanum propinquum M.Martens & Galeotti
  • Solanum rostratum var. rostratum
  • Solanum rostratum var. subintegrum Fernald

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.