Compare sources for Quercus sinuata

USA (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, Oklahoma, South Carolina, Texas); Mexico ( Coahuila, Nuevo León, Tamaulipas); to 600 m;

often a shrub, but may reach 20 metres tall; crown rounded; single trunk;

4-12 x 2.5-6 cm; oblanceolate to oblong; apex broadly rounded; base cuneate; margin entire or with few lobes or only wavy near apex; dull green, hairless above; dull green, pubescent beneath with 8-10 rays stellate hairs, sometimes hairless; 7-11 vein pairs; petiole 3-5 mm long;

acorn 1,2-1.8 cm; almost round or ovoid to oblong; brown; sessile or nearly so; singly or paired; cup shallow, enclosing 1/4 or less of nut, with appressed, smooth, greyish scales; maturing in 1 year in October;

in March; pistillate inflorescence very short, bearing 1 or 2 cups;

– Sub-genus Quercus, Section Quercus, Series Stellatae; – This taxon has been often confused with Q.nigra , because of the likeness of leaves, but the latter belongs to the Sub-genus Quercus, section Lobatae, therefore they have nothing in common ! – Elias Magloire Durand (1794-1873) = botanist at Philadelphia ; – Hybridizes with Q.stellata (= x macnabiana ) –The term “undulata” inspired numerous Authors ! One can list the following : Q.undulata Engelm 1878 (= Q.sinuata Walt.), Q.undulata Kit.1863 (= Q.pubescens Willd.), Q.undulata Benth. 1841 (= Q.benthamii A.DC), Q.undulata K.Koch 1847 (= Q.lusitanica Lam.), Q.undulata Torr 1827 (= Q.x undulata complex Little 1979), Q.undulata Sarg., and A.DC ( describing more or less Q.x pauciloba …), Q.undulata S. Wats. (= Q.gambelii Nutt.) ; – The term “durandii” is currently considered as “nomen confusum”, because it was given by Buckley to some taxons he considered as varieties, whereas we know today they are separate species (= Q.austrina, Q.sinuata var. sinuata and Q.sinuata var. breviloba );