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Quercus stellata | |
Author | Wangenh. 1787 Beytr. Teut. Forstwiss. 78 |
Synonyms | alba
var. minor Marsh. 1785 minor (Marsh.) Sarg. 1889 obtusiloba Michx. 1802 stellata var. attenuata Sarg. 1918 stellata var. palmeri Sarg. 1918 stellata var. parviloba Trel. 1924 villosa Walt. 1788 |
Local names | post oak |
Range | Central and Southeastern USA; to 1000 m; introduced in Europe in 1819; |
Growth habit | reaches 20 m tall; open, round crown, with spreading branches; |
Leaves | 8-15 x 5-12 cm; deciduous; stiff, thick; obovate; apex broadly rounded; base cuneate; 2-3 pairs of lobes; the central two lobes are longer, square, Maltese cross-shaped; grey-green, lustrous, rough at the touch above; pale, dull and densely tomentose beneath; 3-5 vein pairs; petiole 1-2 cm long; |
Flowers | |
Fruits | acorn 1.2-2 cm long; elliptic or subglobose; pale brown; singly or paired; cup subsessile, enclosing 1/3 or more of nut, with appressed, pointed, pubescent scales; |
Bark, twigs and |
bark pale grey, furrowed, scaly, thick; young twigs yellowish pubescent, thick, glabrous at fall ; numerous lenticels; buds red brown, ovoid or subglobose, slightly pubescent, 4 mm long; |
Hardiness zone, habitat | hardy; prefers lime-free soils, even dry ones; not so fast growing; |
Miscellaneous |
-- A. Camus : n° 274 ; |
Subspecies and varieties |
--- Q.margaretta (Ashe)
Small 1903 Fl. S.E. U.S. 355 (A. Camus n° 275) = Q. stellata var. araniosa Sarg. 1913 = Q. minor var. margareta Ashe 1894 = Q. stellata var. margaretta (Ashe ) Sarg. 1913 = Q. stellata subsp margareta (Ashe) E.Murray 1983 sand-post oak ; dwarf post oak ; closely related to Q.stellata, but smaller (10 m), with bark very rough, twigs becoming grey and glabrous, leaves less rough above and less tomentose beneath; cup always sessile enclosing 3/4 of nut; sandy, rocky soils; 0 to 600 m; hybrids with Q.stellata, sometimes named Q.x drummondi Liebmann 1854 (= Q. x pseudomargaretta); also written " margarettiae"; --- var. paludosa Sarg. delta post oak ; Mississippi Valley oak ; see Q.similis |
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