Log In New Account Sitemap
  • Home
  • Specimen Search
    • Search Collections
    • Map Search
    • Exsiccati Search
  • Images
    • Image Browser
    • Search Images
  • Flora Projects
    • Arizona
    • New Mexico
    • Colorado Plateau
    • Plant Atlas of Arizona (PAPAZ)
    • Sonoran Desert
    • Teaching Checklists
  • Agency Floras
    • NPS - Intermountain
    • USFWS - Region 2
    • BLM Flora
    • Coronado NF
  • Dynamic Floras
    • Dynamic Checklist
    • Dynamic Key
  • Additional Websites
    • New Mexico Flores
    • Plant Atlas Project of Arizona (PAPAZ)
    • Southwest Colorado Wildflowers
    • Vascular Plants of the Gila Wilderness
    • Consortium of Midwest Herbaria
    • Consortium of Southern Rocky Mountain Herbaria
    • Intermountain Region Herbaria Network (IRHN)
    • Mid-Atlantic Herbaria
    • North American Network of Small Herbaria (NANSH)
    • Northern Great Plains Herbaria
    • Red de Herbarios del Noroeste de México (northern Mexico)
    • SERNEC - Southeastern USA
    • Texas Oklahoma Regional Consortium of Herbaria (TORCH)
  • Resources
    • Help
    • Webinars
    • Joining a Symbiota Portal
Quercus mohriana Buckl. ex Rydb.  
Go To Encyclopedia of Life...
Family: Fagaceae
Mohr's Oak
Quercus mohriana image
  • FNA
  • Web Links
Kevin C. Nixon in Flora of North America (vol. 3)
Shrubs or trees , evergreen or deciduous, shrubs erect, rhizomatous, trees small, 0.5-3 m. Bark pale, rough and deeply furrowed. Twigs yellowish or whitish, 1-2 mm diam., felty-tomentose. Buds dark red-brown, round-ovoid, 2 mm, glabrous, occasionally puberulent on outer scales, not subtended by persistent, hairy, subulate stipules. Leaves: petiole 2-5 mm. Leaf blade usually strongly bicolored, oblong or elliptic, (15-)30-50(-80) × (10-)20-30(-35) mm, leathery, base rounded, rarely cuneate or cordulate, margins entire or toothed or denticulate, undulate or flat, secondary veins 8-9 on each side, apex rounded or acute; surfaces abaxially densely gray- or white-tomentose with semi-erect curly, stellate hairs, secondary veins rather prominently raised, adaxially dark or dull green, lustrous or somewhat glaucous, with minute, scattered, semi-erect or appressed-stellate, (4-)6 or many rayed hairs, not felty to touch, secondary veins slightly raised or prominent within depressions. Acorns solitary or paired, subsessile or peduncle sometimes 10-15 mm, tomentose like twigs; cup shallowly to very deeply cup-shaped, 5-12 mm deep × 8-18 mm wide, enclosing 1/2 nut, base rounded or flat, margin thin, scales triangular-ovate to oblong, proximal scales coarsely tuberculate and canescent-tomentose, distal ones usually elongate and narrowed, tips appressed, reddish, thin, nearly glabrous; nut light brown, ellipsoid to ovoid, 8-15 × 5-12 mm. Cotyledons connate. Flowering spring. Limestone hills and slopes, calcareous substrates; 600-2500 m; N.Mex., Okla., Tex.; Mexico (Coahuila). Putative hybrids between Quercus mohriana Buckley and Q . grisea Liebmann are problematic and highly polymorphic. They are restricted to zones of contact between limestone, the preferred habitat of Q . mohriana , and igneous substrates, the preferred habitat of Q . grisea , or sometimes on dolomite, in western Texas.

  • Encyclopedia of Life
  • W3Tropicos
  • USDA PLANTS Database
  • Flora of North America
  • International Plant Names Index
  • Google Search Engine
  • Google Images
  • BOLD Systems - Barcode of Life Data Systems
  • Global Biotic Interactions (GloBI)
  • NCBI - National Center for Biotechnology Information
Quercus mohriana
Open Interactive Map
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Dill, Isabel  
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Dill, Isabel  
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Quercus mohriana image
Click to Display
100 Initial Images
- - - - -
View All Images
The National Science Foundation
Development of SEINet, Symbiota, and several of the specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)