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Quercus shumardii | |
Author | Buckley 1860 Proc. Acad. Nat. Sci. Philadelphia 12: 444 1860 publ. 1861. |
Synonyms | shumardii var. schneckii (Britt.) Sarg.1918 schneckii Britton 1901 texana auctores not Buckl. |
Local names | Shumard's oak; |
Range | South Ontario; Eastern and Central USA; introduced in Europe in 1908; |
Growth habit | 15-30 m tall and more; rounded open crown; |
Leaves | 8-18 x 6-13 cm; leathery; obovate to broad-elliptic; 3-5 pairs of lobulate, bristle-tipped, toothed lobes with deep sinuses; apex acute; base obtuse to acute; lustrous dark green, hairless above; paler, glabrous beneath except large axillary tufts of rusty hairs; red at fall; petiole hairless 3-6 cm long; |
Flowers | spring |
Fruits | acorn 1.8-2.8 cm long, with dark brown streaks; short-stalked; usually solitary; enclosed 1/4 by cup; cup 1.8-30 mm in diameter, with greyish pubescent, pointed, appressed scales; maturing in 2 years; |
Bark, twigs and |
bark smooth, grey, becoming minutely fissured into pale ridges and dark furrows; twig grey to pale brown, with stellate pubescence, glabrescent; buds pale grey brown, never rusty, hairless, ellipsoid, 4-8 mm long, pentagonal in cross-section, with bloomy scales; |
Hardiness zone, habitat | hardy; all types of soils, but prefers moist and rich ones; rather fast-growing; |
Miscellaneous |
-- A. Camus : n° 426; |
Subspecies and varieties |
1_var. texana (Buckl.) Ashe = Q.texana Buckl. = Q.nuttallii Palmer ==> see Q.texana 2_var. schneckii (Britt. )
Sarg. 1926 J. Arnold Arbor. 7: 7 3_var.acerifolia E.J.Palmer
1927 4_ var. stenocarpa Laughlin
1969 |
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