| Quercus durata | |
| Author | Jepson 1909 Fl. Calif. 1: 356 |
| Synonyms | dumosa subsp durata (Jeps.)
A.Camus 1935 dumosa var. bullata Engelm. 1877 dumosa var. revoluta Sarg. 1895 |
| Local names | leather oak ; |
| Range | California, 150 to 1500 m; |
| Growth habit | to 2 m; densely branched, often prostrate; |
| Leaves | 1.5-4 x 0.7-2 cm, evergreen, leathery; oblong to elliptic, strongly convex; margin revolute, wavy and spiny; base cuneate; apex slightly pointed; adaxially dark dull green (more or les greyish), with appressed, persistent hairs; pale grey pubescent beneath with 1-2 mm long tawny hairs; |
| Flowers | |
| Fruits | acorn cylindrical 1.5-2.5 cm long, nearly sessile, enclosed 1/2 or more in cup with scales; |
|
Bark, twigs and |
bark scaly; young shoot yellow grey, tomentose; bud brown, globose, 1-2 mm; |
| Hardiness zone, habitat | hardy zone 8; in dry soils made of serpentine (prefers soil rich in magnesium); |
| Miscellaneous | -- Sub-genus Quercus,
Section Quercus, Series Dumosae. |
| Subspecies and varieties |
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Q. durata has a variety : Q. durata var. gabrielensis Nixon et C.H.Muller 1994 = San Gabriel Mountains Leather Oak 1-3 m, with densely hairy twigs; leaves leathery, weakly convex, with longer hairs beneath (2-4 mm), shiny green above; petiole hairy less than 5 mm long; acorn 2 cm, stalkless, enclosed by warty, glabrous cup; 450-1000 m; California (San Gabriel Mountains, Los Angeles County) where there is no or very few serpentine; |
| Pictures |
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