Quercus garryana |
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Garry oak, Oregon oak, Oregon white oak |
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Habit | Trees or shrubs, deciduous, trees to 15(-20) m, with solitary trunks, shrubs to 0.1-3 m, multitrunked. | ||||||||
Bark | light gray or almost white, scaly. |
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Twigs | brown, red, or yellowish, 2-4 mm diam., densely puberulent with spreading hairs or glabrate. |
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Buds | brown or yellowish, ovoid or fusiform and apex acute, 2-12 mm, glandular-puberulent or densely pubescent. |
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Leaves | blade obovate, elliptic or subrotund, moderately to deeply lobed, 25-120(-140) × 15-85 mm, base rounded-attenuate or cuneate, rarely subcordate, often unequal, margins with sinuses usually reaching more than 1/2 distance to midrib, lobes oblong or spatulate, obtuse, rounded or blunt, larger lobes usually with 2-3 sublobes or teeth, veins often ending in retuse teeth, secondary veins yellowish, 4-7 on each side, the more distal veins often branching within distal lobes, apex broadly rounded; surfaces abaxially light green or waxy yellowish, often felty to touch, densely to sparsely covered with semi-erect or erect, simple and (2-)4-8-rayed, fasciculate hairs 0.1-1 mm, secondary veins raised, adaxially bright or dark green, glossy or somewhat scurfy because of sparse stellate hairs. |
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Acorns | 1-3, subsessile, rarely on peduncle to 10(-20) mm; cup saucer-shaped, cup-shaped, or hemispheric, 4-10 mm deep × 12-22 mm wide; scales yellowish or reddish brown, often long-acute near rim of cup, moderately or scarcely tuberculate, canescent or tomentulose; nut light brown, oblong to globose, (12-)25-30(-40) × (10-)14-20(-22) mm, apex blunt or rounded, glabrous or often persistently puberulent. |
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Cotyledons | distinct. |
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2n | = 24. |
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Quercus garryana |
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Distribution |
CA; OR; WA; BC
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Discussion | Varieties 3 (3 in the flora). Quercus garryana (no varieties specified) was used medicinally by Native Americans to treat tuberculosis and as a drink and a rub for mothers before childbirth (D. E. Moerman 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | ||||||||
Parent taxa | |||||||||
Sibling taxa | |||||||||
Subordinate taxa | |||||||||
Synonyms | Q. douglasii var. neaei, Q. garryana var. jacobi, Q. jacobi, Q. lobata var. breweri, Q. neaei | ||||||||
Name authority | Douglas ex Hooker: Fl. Bor.-Amer. 2: 159. (1840) | ||||||||
Web links |
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