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Quercus vaseyana | |
Author | Buckl. 1883 Bull. Torrey Bot. Club 10: 91 |
Synonyms | pungens var.
vaseyana (Buckl.) C.H.Muller 1951 undulata Torr. var. vaseyana (Buckl.) Rydb.1901 pungens subsp vaseyana (Buckl.) E.Murray 1983 sillae Trel. 1924 Diagnosis here |
Local names | Vasey shin oak |
Range | W Texas (Edwards Plateau), NE Mexico (Chihuahua, Nuevo Leon, Tamaulipas); 300-800 m; |
Growth habit | usually 6-10 m, but often 0.3-1.5 m, bushy; |
Leaves | 3.5-8 x 1-3 cm, deciduous, leathery; oblong to lanceolate; apex obtuse or acute and mucronate; base cuneate or obtuse; margin flat, thick but not revolute, with 3-5 pairs of mucronate teeth from base to apex; dark shiny green above, glabrous or with some stellate hairs near the base of the midrib; dull, densely tomentose beneath, with appressed stellate and simple hairs, except on bigger veins; 5-8 vein pairs, slightly impressed above, prominent beneath; epidermis papillose; petiole 2-5 cm long, with stellate hairs; |
Flowers | male inflorescence 2-3 cm, hairy; |
Fruits | acorn 1-1.2 cm, shiny, pale brown, stalkless or nearly so; enclosed 1/3 by strongly warty cup; maturing in 1 year; |
Bark, twigs and |
bark peeling, thin, furrowed; twigs slender 1-4 mm long, becoming grey, smooth, glabrescent; very small buds 1-1.5 mm long, ovoid; stipules deciduous 3 mm, more or less pubescent; |
Hardiness zone, habitat | hardiness zone : 7; dry, calcareous soils; |
Miscellaneous | --
Sub-genus Quercus, Section Quercus, Series Polymorphae; -- No hybrid known; -- -- Possible confusion with Q. tinkhamii which has similar leaves, but which is smaller with smaller leaves (only 2-5 cm long), with margin not dentate at the base, and not appressed stellate trichomes beneath; |
Subspecies and varieties |
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Pictures |
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