Quercus phellos (Willow Oak)
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Description: Detailed facts on physical characteristics. Describes habitat and includes range map.
Quercus phellos in Flora of North America @ efloras.org Linnaeus, Sp. Pl. 2: 994. 1753. Trees , deciduous, to 30 m. Bark dark gray and smooth, becoming darker and irregularly fissured with age, inner bark light orange. Twigs reddish brown, 1-2 mm diam., glabrous. Terminal buds chestnut brown, ovoid, 2-4 mm, apex acute, glabrous. Leaves: petiole 2-4(-6) mm, glabrous, rarely sparsely hairy. Leaf blade linear to narrowly elliptic, usually widest near middle, 50-120 × 10-25 mm, base acute, margins entire with 1 apical awn, apex acute; surfaces abaxially pale green, glabrous, rarely softly pubescent, adaxially light green, glabrous. Acorns biennial; cup shallowly saucer-shaped, 3-6.5 mm high × 7.5-11 mm wide, covering 1/4-1/3 nut, outer surface puberulent, inner surface light brown, pubescent, scale tips tightly appressed, acute; nut ovoid to hemispheric, 8-12 × 6.5-10 mm, often striate, glabrate, scar diam. 4.5-6 mm.
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| Page title: | Quercus phellos in Flora of North America @ efloras.org |
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| IP-address: | 192.104.39.76 |
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| Date | Creation Date: 2003-08-14T15:34:40Z Expiry Date: 2014-08-14T15:34:40Z |