Rubus leucodermis(Douglas ex Hook.) Douglas ex Torr. & A.Gray

Blackcap Raspberrywhitebark raspberry

WFO wfo-0001007430 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Rubus leucodermis, photographed by humon
fig. a humon, CC BY 4.0 / 2022-05-29 / obs. 201789715

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.

Native range 12 botanical countries

Regions where Rubus leucodermis is native: Alaska, Arizona, British Columbia, California, Idaho, Mexico Northeast, Montana, Nevada, New Mexico, Oregon, Utah, Washington AlaskaArizonaBritish ColumbiaCaliforniaIdahoMexico NortheastMontanaNevadaNew MexicoOregonUtahWashington
Native distribution of Rubus leucodermis, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Alaska ASK NORTHERN AMERICA
Arizona ARI
British Columbia BRC
California CAL
Idaho IDA
Mexico Northeast MXE
Montana MNT
Nevada NEV
New Mexico NWM
Oregon ORE
Utah UTA
Washington WAS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 69 in flower of 903 examined

Proportion of examined Rubus leucodermis in flower, by month
Month In flower Examined Share 95% interval
Jan 0 11 0% 0% to 26%
Feb 1 11 9% 2% to 38%
Mar 0 24 0% 0% to 14%
Apr 4 30 13% 5% to 30%
May 27 70 39% 28% to 50%
Jun 29 190 15% 11% to 21%
Jul 7 308 2% 1% to 5%
Aug 1 149 1% 0% to 4%
Sep 0 48 0% 0% to 7%
Oct 0 18 0% 0% to 18%
Nov 0 19 0% 0% to 17%
Dec 0 25 0% 0% to 13%

Peak flowering in May. Each bar is the share of Rubus leucodermis observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 69 of 903 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 15 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.

  • Melanobatus bernardinus Greene
  • Melanobatus leucodermis (Douglas ex Hook.) Greene
  • Melanobatus nigerrimus Greene
  • Rubus bernardinus (Greene) Rydb.
  • Rubus douglasii Steud.
  • Rubus hesperius Piper
  • Rubus leucodermis subsp. bernardinus (Greene) Thorne
  • Rubus leucodermis var. bernardinus (Greene) Jeps.
  • Rubus leucodermis var. trinitatis A.Berger
  • Rubus leucostachys Douglas ex Steud.
  • Rubus nigerrimus (Greene) Rydb.
  • Rubus occidentalis subsp. leucodermis (Douglas ex Hook.) Focke
  • Rubus occidentalis var. leucodermis Douglas ex Hook.
  • Rubus occidentalis var. mexicanus Focke
  • Rubus trinitatis (A.Berger) L.H.Bailey

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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.