Quercus havardiiRydb.

Harvard OakHavard oakShinnery Oak

WFO wfo-0000291071 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Quercus havardii, photographed by Brad Banner
fig. a Brad Banner, CC BY 4.0 / 2022-05-01 / obs. 193444549
Quercus havardii, photographed by CK2AZ
fig. b CK2AZ, CC BY 4.0 / obs. 171179481
Quercus havardii, photographed by Jared Shorma
fig. c Jared Shorma, CC BY 4.0 / obs. 163907177
Quercus havardii, photographed by Jared Shorma
fig. d Jared Shorma, CC BY 4.0 / obs. 163914178
Quercus havardii, photographed by CK2AZ
fig. e CK2AZ, CC BY 4.0 / obs. 106532535
Quercus havardii, photographed by CK2AZ
fig. f CK2AZ, CC BY 4.0 / obs. 106533450
Quercus havardii, photographed by CK2AZ
fig. g CK2AZ, CC BY 4.0 / obs. 104610870
Quercus havardii, photographed by Reid Hardin
fig. h Reid Hardin, CC BY 4.0 / obs. 96056492

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 3 botanical countries

Regions where Quercus havardii is native: New Mexico, Oklahoma, Texas New MexicoOklahomaTexas
Native distribution of Quercus havardii, 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
New Mexico NWM NORTHERN AMERICA
Oklahoma OKL
Texas TEX

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.

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.