Lepidium oblongumSmall

veiny pepperweed

WFO wfo-0000358352 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 6 observations

This species has been photographed under an open licence only 6 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 oblongum, photographed by Adam J. Searcy
fig. a Adam J. Searcy, CC BY 4.0 / 2011-04-05 / obs. 32464503
Lepidium oblongum, photographed by Steve Matson
fig. b Steve Matson, CC BY 4.0 / obs. 98452111
Lepidium oblongum, photographed by Amy
fig. c Amy, CC BY 4.0 / obs. 183834025
Lepidium oblongum, photographed by Ryan Donnelly
fig. d Ryan Donnelly, CC BY 4.0 / obs. 120493115
Lepidium oblongum, photographed by Ryan Donnelly
fig. e Ryan Donnelly, CC BY 4.0 / obs. 69776447
Lepidium oblongum, photographed by Tamberly Conway
fig. f Tamberly Conway, CC BY 4.0 / obs. 67985766
Lepidium oblongum, photographed by Amy
fig. g Amy, CC BY 4.0 / obs. 183834041
Lepidium oblongum, photographed by Ryan Donnelly
fig. h Ryan Donnelly, CC BY 4.0 / obs. 120493156

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 22 botanical countries

Regions where Lepidium oblongum is native: Arizona, Arkansas, California, Kansas, Louisiana, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Missouri, New Mexico, Oklahoma, Oregon, Tennessee, Texas, El Salvador, Guatemala, Honduras ArizonaArkansasCaliforniaKansasLouisianaMexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestMississippiMissouriNew MexicoOklahomaOregonTennesseeTexasEl SalvadorGuatemalaHonduras
Native distribution of Lepidium oblongum, 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
Arizona ARI NORTHERN AMERICA
Arkansas ARK
California CAL
Kansas KAN
Louisiana LOU
Mexican Pacific Is. MXI
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Mississippi MSI
Missouri MSO
New Mexico NWM
Oklahoma OKL
Oregon ORE
Tennessee TEN
Texas TEX
El Salvador ELS SOUTHERN AMERICA
Guatemala GUA
Honduras HON

Not drawn on the map: Mexican Pacific Is.. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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 3 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 greenei Thell.
  • Lepidium oblongum var. insulare C.L.Hitchc.
  • Lepidium oblongum var. oblongum Small

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.