| Quercus x mazei | |
| Author | Luebbert ex Coombes & Cameron nothosp. nov. 2026 |
| Synonyms | macrocarpa X gambelii |
| Local names | Colorado foothills oak |
| Range | Colorado, Baca County (native hybrid); New Mexico; South Dakota; Wyoming; |
| Growth habit | usually shrub to 4 m or seldom tree; reaches 18 m in cultivation; |
| Leaves | 9-11 X 5-8 cm; elliptic to obovate; base cuneate, sometimes rounded; 3-8 of mucronate lobes, with variable depth of sinus, the largest often themselves lobed; petiole 3 cm long; |
| Flowers | |
| Fruits | acorn 1.6-1.8 cm long; cup tuberculate, whose rim lacks (or nearly so) the fringe of slender scales that can be observed in Q. macrocarpa. |
|
Bark, twigs and |
twig 3-4 mm in diametre; young shoot usually lacking the corky wings visible in Q. macrocarpa |
| Hardiness zone, habitat | |
| Miscellaneous | -- Sub-Genus Quercus, Section
Quercus, sub-section Prinoideae; -- In 2006, Reinhold Lübbert had published this new taxon but invalidly (without description and lacking a type-specimen) |
| Subspecies and varieties |
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| Pictures |
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