Lepidium ramosissimumA.Nelson

manybranched pepperweed

WFO wfo-0001216389 Accepted WFO 2026-06 4 photographs CC BY

Plate 1 figs. a–d · 2 observations

This species has been photographed under an open licence only 2 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Lepidium ramosissimum, photographed by Syd Cannings
fig. a Syd Cannings, CC BY 4.0 / 2020-07-11 / obs. 84009691
Lepidium ramosissimum, photographed by Syd Cannings
fig. b Syd Cannings, CC BY 4.0 / obs. 21456590
Lepidium ramosissimum, photographed by Syd Cannings
fig. c Syd Cannings, CC BY 4.0 / obs. 84009662
Lepidium ramosissimum, photographed by Syd Cannings
fig. d Syd Cannings, CC BY 4.0 / obs. 84009686

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 26 botanical countries

Regions where Lepidium ramosissimum is native: Alaska, Alberta, British Columbia, California, Colorado, Idaho, Maine, Manitoba, Mexico Northeast, Minnesota, Montana, Nebraska, Nevada, New Brunswick, New Mexico, Newfoundland, North Dakota, Northwest Territories, Ontario, Québec, Saskatchewan, South Dakota, Texas, Utah, Wyoming, Yukon AlaskaAlbertaBritish ColumbiaCaliforniaColoradoIdahoMaineManitobaMexico NortheastMinnesotaMontanaNebraskaNevadaNew BrunswickNew MexicoNewfoundlandNorth DakotaNorthwest TerritoriesOntarioQuébecSaskatchewanSouth DakotaTexasUtahWyomingYukon
Native distribution of Lepidium ramosissimum, 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
Alberta ABT
British Columbia BRC
California CAL
Colorado COL
Idaho IDA
Maine MAI
Manitoba MAN
Mexico Northeast MXE
Minnesota MIN
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Mexico NWM
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Ontario ONT
Québec QUE
Saskatchewan SAS
South Dakota SDA
Texas TEX
Utah UTA
Wyoming WYO
Yukon YUK

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.

Also published as 8 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.

  • Lepidium bourgeauanum Thell.
  • Lepidium densiflorum var. bourgeauanum (Thell.) C.L.Hitchc.
  • Lepidium divergens Osterh.
  • Lepidium fletcheri Rydb.
  • Lepidium ramosissimum var. bourgeauanum (Thell.) Rollins
  • Lepidium ramosissimum var. divergens (Osterh.) Rollins
  • Lepidium ramosissimum var. ramosissimum A. Nelson
  • Lepidium ramosissimum var. robustum Thell.

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.