. Concord area trees and shrubs. Botany; Trees; Shrubs. TREES ALTERNATE SIMPLE LEAVES SCRUB OAK Quercus ilicifolia Small tree or usually a shrub. Leaves relatively small (5-12 cm. long), whitish- felted beneath, lustrous dark green above. Acorns small, about 1 cm. long, bitter. Dry, sterile scrub woods, or sandy-gravelly clearings. Common. SCARLET OAK Quercus coccinea Leaves with wide rounded sinuses reaching close to midrib, usually lustrous above, mostly hairless beneath, turning dark red in autumn. Leafstalk slender (mostly 1 mm. thick or less). Mature acorn cup ( - cm. across) enclo
. Concord area trees and shrubs. Botany; Trees; Shrubs. TREES ALTERNATE SIMPLE LEAVES SCRUB OAK Quercus ilicifolia Small tree or usually a shrub. Leaves relatively small (5-12 cm. long), whitish- felted beneath, lustrous dark green above. Acorns small, about 1 cm. long, bitter. Dry, sterile scrub woods, or sandy-gravelly clearings. Common. SCARLET OAK Quercus coccinea Leaves with wide rounded sinuses reaching close to midrib, usually lustrous above, mostly hairless beneath, turning dark red in autumn. Leafstalk slender (mostly 1 mm. thick or less). Mature acorn cup ( - cm. across) enclosing Va or more of acorn; upper scales of cup pressed together (not forming a definite fringe). Acorns bitter. Bark is somewhat intermediate between Red Oak and Black Oak. Dry woods, roadsides. Common. PIN OAK Quercus palustris Leaves similar to Scarlet Oak, but acorn cups shallow and only cm. across. Main trunk essentially straight and undivided (like a pin). Main side branches often drooping or horizontal. Frequently planted. Occasionally escapes cultivation. BLACK OAK Quercus velutina Leaves quite variable in shape, mostly 5-7 lobes, usually dark lustrous green above, somewhat hairy beneath early but becoming mostly hairless. Leafstalk thick, usually distinctly more than 1 mm. thick. Mature acorn cups ( cm. across) enclosing V4 or more of acorn; upper scales somewhat loose, forming a rough fringe. Mature trunk bark dark, broken into short, irregular, block-like strips. Acorns bitter, inedible. Dry woods, roadsides. Abundant. RED OAK Quercus rubra Large, shallow, saucer-like acorn cups are distinctive ( cm. wide when mature). Leaves somewhat variable in shape, mostly 7-11 lobes with sinuses usually reaching about halfway to midrib (not more than V* of the way), mostly hairless beneath. Trunk bark flat-topped ridges. Acorns bitter. Moist to dry woods, roadsides. SCRUB OAK SCARLET OAK. Please note that these images are extracted from scanned page im
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