| Quercus lobata | |
| Author | Née 1801 Anales Ci. Nat. 3: 277 Diagnosis here |
| Synonyms | hindsii
Benth. 1844 lobata var. turbinata Jepson 1909 lobata var. walkeri Jeps. 1909 lobata var. hindsii (Benth.) Wenz. 1884 longiglanda Torr. & Frémont 1848 |
| Local names | mush
oak ; valley oak ; El Roble ; California white oak
; |
| Range | California (including Channel Islands); to 12800 m, in warm, moist valleys; |
| Growth habit | may reach 30 m, with a short trunk to 2 m and more in diameter; weeping at the end of branches; open crown spreading; stout branches; |
| Leaves | 5-10 x 3-6 cm; oblong to oboval; lobate (7-11 lobes each side, with deep sinuses), sometimes toothed at their apex; base cuneate or round; shiny dark green above with some stellate hairs; pale green or whitish, tomentose beneath, with numerous short stellate hairs; 5-10 vein pairs; petiole 0.6-1.3 cm long, pubescent; |
| Flowers | male
flowers on catkins 2.5-7.5 cm long; |
| Fruits | acorn
3-6 cm long, narrow, pointed; sessile or subsessile; singly or paired;
cup with warty, pilose scales, covering 1/3 of nut or less; |
|
Bark, twigs and |
bark
thick, furrowed, light grey, broken into square plates; twig yellowish
grey, sometimes reddish, tomentose; buds pale brown, ovoid, 3-5 mm long,
pointed, densely pubescent; |
| Hardiness zone, habitat | hardy;
prefers acidic or slightly calcareous, rich, deep soils; slow-growing;
trunk is often covered with lichen (Ramalina reticulata) ;
|
| Miscellaneous | --
Sub-genus Quercus, Section Quercus, Subsection Dumosae; -- A.Camus : n° 266; -- Confusion possible with Q. garryana which has leaves with less deep sinuses, and acorns less pointed. -- Some hybrids, with Q.douglasii ( = x jolonensis), Q.turbinella ( = x munzii), Q.dumosa ( = x townei); |
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| Pictures |
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