Oaks of the World

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  Quercus hinckleyi
Author C.H.Muller 1951 Contr. Texas Res. Found., Bot. Stud. 1: 40
Local names Hinckley’s oak
Range Texas (Presidio County, threatened species); Mexico (North Chihuahua); less than 1500 m ; very restricted area;
Growth habit dwarf (not exceeding 1.2 m); multiple trunks; densely branched; thicket forming;
Leaves 0.5-1.5 cm long (longer in cultivation); evergreen; leathery; thick; broadly elliptic to almost orbicular; apex obtuse or pointed, base cordate; margin wavy, coarsely toothed; glabrous, greyish green on both sides; petiole pubescetn, 2 mm long;
Flowers spring;
Fruits acorn 1.2 cm long, oval; brown; singly or paired; cup subsessile, shallow, with appressed, warty scales; maturing in 1 year;

Bark, twigs and

bark scaly, grey; twig pale brown, bloomy, smooth or weakly hairy; bud globose, very small (0.5-1 mm), red brown, hairless;
Hardiness zone, habitat hardiness zone : 7; prefers calcareous, rocky, dry slopes;
Miscellaneous --  A. Camus : n° 182 ;
-- Sub-genus Quercus, Section Quercus, Series Leucomexicanae;
-- Threatened (IUCN Red List Category : CR)

Subspecies and