| Quercus x undulata | |
| Author | Torr. 1828 (pro sp) Ann. Lyceum Nat. Hist. New York 2: 248 |
| Synonyms | gambelii
x turbinella = x fendleri Liebm. 1854 Diagnosis here = gambelii var. fendleri (Liebm.) A.Nelson 1909 = undulata A.DC 1864 = undulata Sarg. p.p. = x pauciloba Rydb. 1901 (pro sp.) = x venustula Greene 1890 = x subobtusifolia A.Camus 1935 = x rydbergiana Cockerell 1903 |
| Local names | "wavyleaf oak" |
| Range | Utah, Arizona, New Mexico, Texas; Mexico (Chihuahua); |
| Growth habit | 1 to 3 m; rarely reaches 8 m; |
| Leaves | evergreen; 4-9cm long, 3-5 wide, lustrous and light glaucous above, light brown tomentose beneath; margin with 2-5 pairs of pointed and mucronate lobes; |
| Flowers | |
| Fruits | acorn 1.5-1.8cm long, mucronate, light brown, enclosed for 1/3 of length in bowl-shaped, reddish brown cup; maturing in 1 year; |
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Bark, twigs and |
scaly grey bark; |
| Hardiness zone, habitat | hardy; all types of soils. |
| Miscellaneous | -- A.
Camus = n° 261; -- Sub-genus Quercus, Section Quercus; sub-section Undulatae; -- The species Q.gambelii hybridizes frequently, creating a population of hybrids described under the name " Q. x undulata complex " by Little in 1979, in order to change the name Q.undulata Torr.1827 ; the previous term was the name of a species whose common name is "wavyleaf oak", or "Rocky Mountain shin oak" ; J.M. Tucker, in 1971, had yet indentified the main parents of this hybrid species : Q. turbinella, Q grisea, Q. havardii, Q.mohriana, Q arizonica and Q.muehlenbergii ; hybrids between Q gambelii and an evergreen species are often semi-evergreen; -- The name "undulata" inspired many Authors ! One can list the following : Q.undulata Engelm 1878 (= Q.sinuata Walt.), Q.undulata Kit.1863 (= Q.pubescens Willd.), Q.undulata Benth. 1841 (= Q.benthamii A.DC), Q.undulata K.Koch 1847 (= Q.lusitanica Lam.), Q.undulata Torr 1827 (= Q.x undulata complex Little 1979), Q.undulata Sarg., and A.DC (more or less = Q.x pauciloba ...), Q.undulata S. Wats. (= Q.gambelii Nutt.); |
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