Plate 1 figs. a–h
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 = 1,349 observations
Peak flowering in Jun, from 1,349 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 59 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.
- Rosa adenosepala Wooton & Standl.
- Rosa arizonica Rydb.
- Rosa arizonica var. granulifera (Rydb.) Kearney & Peebles
- Rosa bakeri Rydb.
- Rosa californica var. glabrata Parish
- Rosa californica var. ultramontana S.Watson
- Rosa chrysocarpa Rydb.
- Rosa demareei E.J.Palmer
- Rosa deserta Lunell
- Rosa fendleri Crép.
- Rosa fimbriatula Greene
- Rosa foliolosa var. leiocarpa Torr.
- Rosa granulifera Rydb.
- Rosa gratissima Greene
- Rosa grosseserrata E.E.Nelson
- Rosa hypoleuca Wooton & Standl.
- Rosa lapwaiensis H.St.John
- Rosa macounii Greene
- Rosa manca Greene
- Rosa maximiliana Rydb.
- Rosa maximiliani Nees
- Rosa mohavensis Parish
- Rosa naiadum Lunell
- Rosa neomexicana Cockerell
and 35 more.
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- 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.