| Quercus cornelius-mulleri | |
| Author | Nixon & K.P.Steele 1991 Madroņo 28: 210 |
| Synonyms | |
| Local names | Muller's
oak ; |
| Range | USA
(Californie : San Diego County) ; Mexico (Baja California) ; 1000-1800
m ; |
| Growth habit | shrub
to 1-2 (3) m tall, most often evergreen; numerous slender branches; |
| Leaves | 1.5-3.5 x 1-2 cm; oval or elliptic; thick, leathery; base cuneate, apex rounded sometimes pointed; margin entire or weakly dentate; 6-7 vein pairs; light dull green above with appressed stellate hairs; whitish beneath, densely covered with numerous stellate hairs; midrib often yellowish; small radiate trichomes; petiole 2-5 mm; |
| Flowers | male
flowers small, on 2.5-5.5 cm catkins; in March-April; |
| Fruits | acorn
spindle-shaped, dark brown, 2-3 cm; subsessile; top-shaped cup enclosing
1/4 to 3/4 of the nut; cup scales warty, whitish, glabrous inside; cotyledons
distinct; maturing first year; |
|
Bark, twigs and |
bark
grey, scaly; twigs yellow brown, densely tomentose; buds brown, ovoid,
glabrous, 2.5-3 mm; |
| Hardiness zone, habitat | dry
sites; |
| Miscellaneous | --
Sub-genus Quercus, Section Quercus, Subsection Dumosae; -- Different from other shrubby Californian oaks (bicoloured leaves with tomentose undersides, large acorns enclosed by deep warty cups); |
| Subspecies and varieties |
--
hybridizes with Q.engelmannii (= x
acutidens), and with Q.lobata (= x
munzii) ; |
| Pictures |
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