| Quercus chrysolepis | |
| Author |
Liebm. 1854 Overs. Kongel. Danske Vidensk. Selsk. Forh. Medlemmers Arbeider 1854: 173 1854. Diagnosis here |
| Synonyms | chrysolepis var. nana (Jepson) Jepson chrysophyllus Kellogg 1855 crassipocula Torr. 1857 fulvescens Kellogg 1863 oblongifolia R.Br.ter 1871 wilcoxii Rydb. 1901 |
| Local names | canyon
oak ; maul oak; canyon live oak ; goldencup oak; |
| Range | Mexico; Southwest
United States; to 2700 m; introduced in Europe in 1877 by Ch. Sargent;
|
| Growth habit | 6-20 m tall;
short, broad trunk; crown rounded to spreading; shrubby at high elevations;
|
| Leaves | 1.4-5 x 1-3 cm; evergreen; elliptic; apex pointed, base rounded; margins slightly revolute, minutely dentate or sometimes entire; thick, leathery; shiny dark green above; when young with golden tomentum beneath, then becoming bluish-grey with some stellate and glandular hairs; 10-15 vein pairs; petiole yellowish 3-9 mm; rusty pubescent, flattened underside; |
| Flowers | in April-May;
7-9 stamens; |
| Fruits | acorn 2-4 cm,
ovoid, blunt-tipped, singly or paired; cup sessile or nearly so, 1.5-4
cm wide, shallow, thick, tomentose inside, with pubescent, flat or warty
scales sometimes covered with yellow tomentum (hence the name "golden
cup oak"); maturing in 2 years; |
|
Bark, twigs and |
bark
light grey, smooth or remotely scaly; young shoots furnished with orangish
glandular hairs; branchlets reddish brown, tomentose, becoming blackish;
bud conic, 2-8 mm long, with brown, ciliate scales; |
| Hardiness zone, habitat | hardy; prefers moist, well-drained soils; very slow growing; |
| Miscellaneous | --
A. Camus : n° 293; -- Sub-genus Quercus, section Protobalanus; -- One of the most beautiful Californian oaks; wood hard, heavy; bearing flowers longer than other oaks; lives up to 300 years and more; -- Resembles Q.cedrosensis, but the latter is shrubby and has small acorns; |
| Subspecies and varieties |
Q.vaccinifolia = see the file ; |
| Pictures |
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