Rubus fruticosusLour.

pilated-leaved blackberry

WFO wfo-0001017952 Accepted WFO 2026-06 6 photographs CC0 / CC BY

Plate 1 figs. a–f

Rubus fruticosus, photographed by Stephen James McWilliam
fig. a Stephen James McWilliam, CC0 1.0 / 2022-02-14 / obs. 179415663

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 = 102 observations

Flowering observations of Rubus fruticosus by month
MonthObservations
Jan1
Feb0
Mar0
Apr2
May13
Jun53
Jul15
Aug5
Sep5
Oct4
Nov4
Dec0

Peak flowering in Jun, from 102 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 1 synonym

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.

  • Rubus plicatus var. latifolius (G.Braun ex Utsch) H.E.Weber

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.