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{{SPlantbox
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Quercus rubra, Linn. Fig. 3306. Tree, to 80, occasionally 150 ft., with stout spreading branches forming a broad, round-topped, symmetrical head: lvs. divided about half way to the middle by wide sinuses into 7-9 triangular-ovate or ovate-oblong lobes, dull green above, light green and pubescent at first beneath, at length glabrous, 5-9 in. long: fr. short-stalked; acorn ovoid, 1 in. long, embraced only at the base 'by the 3/4-1-in.- broad cup. Nova Scotia to Fla., west to Minn, and Texas. S.S.8:409, 410. Em. 1:168. F.S. 17:1812, 1813. H.W. 2, p. 84.—Beautiful oak of rapid growth growing into a large majestic tree, with usually broad round head, the foliage turning dark red in fall. Hybrids are known with the two following species, with Q. velutina, Q. falcate, Q. Phellos and Q. imbricaria. Var. ambigua, Fern. (Q. ambigua, Michx. f., not HBK. Q. borealis, Michx. f. Q. coccinea var. ambigua, Gray). Cups deeper and somewhat turbinate; acorn usually smaller. The northern form. See also note under No. 8.
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{{Taxobox
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