Oaks of the World

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  Quercus texana
Author Buckley 1860 Proc. Acad. Nat. Sci. Philadelphia 12: 444 1860 publ. 1861.
Synonyms nuttallii E.J.Palmer 1927
nuttallii var. cachensis E.J.Palmer
palustris f. nuttallii (Palmer) C.H.Muller 1942
rubra var. texana (Buckl.)Buckl. 1881
shumardii var. texana (Buckl.) Ashe 1918
shumardii subsp texana (Buckl.) E.Murray 1983
Local names Nuttall's oak; Texas red oak ;
Range Alabama ; Missouri ; Texas ; Illinois ; Central South USA ; 0 to 200 m;
Growth habit 18-30 m tall;
Leaves 10-20 x 5-12 cm; apex pointed; base cuneate; margin with 5-9 narrow lobes and deep, broadly rounded sinuses; smooth, hairless, dark green above; paler beneath with tufts of hairs at axil of veins; petiole hairless, 2-5 cm long;
Fruits acorn 1.5-2.5 cm, red brown, striated; rather deep cup, with thick peduncle-shaped base, enclosing 1/4 to 1/2 of nut; maturing in 2 years;

Bark, twigs and

bark at first grey brown, smooth, turning black with flat ridges; twigs brown to grey, hairless; bud grey brown, ovoid, 3-7 mm long, slightly pubescent, with ciliate scales;
Hardiness zone, habitat hardy; prefers moist soils; fast-growing;
Miscellaneous -- Sub-genus Quercus, section Lobatae, Series Palustres;
-- The name Q.texana has been erroneously used for
Q.buckleyi, and by some Authors for Q.gravesii, so it may be better to name this taxon Q.nuttallii in order to avoid confusions...?
-- Thomas Nuttall ( 1786-1859 ) = English American botanist and ornithologist ;
-- Described as a true species, different from
Q.palustris, in 1927 only;

Subspecies and
-- Q.nuttallii var. cachensis E.J.Palmer is a variety occuring in Central Arkansas, with smaller acorn (1.6-1.8 cm)