Garry oak
- Latin name: Quercus garryana Dougl. ex Hook.
- French name: Chêne de Garry
- Synonym(s): Oregon white oak
- Taxonomic Serial Number: 19340
Description
Leaves
Form
- Thick, stiff
- 5–7 rounded lobes
- Separated by deep, narrow notches
- Larger lobes may be notched at the tip
- Upper surface appears pebbled
- Lower surface hairy
Length
- 7–10 cm
Colour
- Upper surface shiny dark green
- Lower surface dull yellowish-green
- Hairs brown
Autumn colour
- May turn red
Petiole
- 1–3 cm long
Buds
Form
- Terminal bud elongated, pointed
- Lateral buds diverging from the twig
- Scales narrow, rather loose
- Densely hairy
Length
- Terminal bud 6–12 mm
Colour
- Pale brown
Twigs
Form
- Stout
- Densely hairy in first season, becoming hairless
Colour
- Becoming dark reddish-brown
Flowers
Form
- Pollen flowers small
- In many-flowered drooping catkins
- Seed flowers small
- Solitary or in few-flowered clusters (spikes)
Structure
- Monoecious
Floral timing
- With the leaves
Fruits
Form
- Acorns solitary or paired
- On short stalks
- Cup shallow, saucer-shaped, enclosing one-third of the acorn
- Scales slightly thickened, hairy
- Free at the tips
- Do not form a marginal fringe
Length
- Acorns 25–30 mm
- Stalks up to 5 mm
Structure
- 1-seeded nut
Bark
Form
- Scaly, with narrow, shallow furrows
Colour
- Dark greyish-brown
Size
Height
- To 20 m
- Small trees
- Shrubby on poor rocky sites
Diameter
- To 150 cm
Maximum age
- 200 years
Tree form
Forest-grown
Trunk
- Short, stout
- Often forked below 5 m
Crown
- Broad, rounded
- Composed of numerous twisted, knobby branches
Habitat
Site
- Deep, moist, loamy soils
- Often at forest edges on south-facing slopes
- Dry rocky knolls
- Seaside sites not subject to tidal flooding
Light tolerance
- Intolerant of shade and competition
Associated species
- In small pure stands or mixed with Douglas-fir and arbutus
Range
The only oak native to British Columbia
Coastal Vancouver Island and the Gulf Islands
Scattered locations along the lower Fraser River
Other
Similar in appearance to English oak
Photos
Photos
Insects and mites
Insects that cause damage to this tree.
Flowers, fruits, or seeds
-
Winter moth
Scientific name: Operophtera brumata (L.)
Foliage or buds
Hemlock looper
-
Lambdina fiscellaria
(Guenée)
- Lambdina fiscellaria fiscellaria
- Lambdina fiscellaria lugubrosa
- Lambdina fiscellaria somniaria
- Eupithecia subfuscata (Haworth)
-
Gelechiid moth
Scientific name: Chionodes continuella (Zeller)
-
Hemlock looper
Scientific names:
-
Lambdina fiscellaria
(Guenée)
- Lambdina fiscellaria fiscellaria
- Lambdina fiscellaria lugubrosa
- Lambdina fiscellaria somniaria
-
Lambdina fiscellaria
(Guenée)
- Hydriomena irata Swett
-
Larch pug moth
Scientific name: Eupithecia annulata (Hulst)
-
Northern tent caterpillar
Scientific name: Malacosoma californicum pluviale (Dyar)
-
Pero moth
Scientific name: Pero morrisonaria (Hy. Edwards)
-
Red-barred tortrix
Scientific name: Ditula angustiorana (Haworth)
-
Western oak looper
Scientific name: Lambdina fiscellaria somniaria (Hulst)
-
Winter moth
Scientific name: Operophtera brumata (L.)
Diseases caused by pathogens
Diseases caused by pathogens that cause damage to this tree.
Roots, bark, stem or trunk, or branches
Schweinitzii butt rot
Pathogen name: Phaeolus schweinitzii (Fr.) Pat. (Common names for the fungus: velvet-topped polypore, dyer’s polypore)
Distribution map
