General data | Classifications | List of species | Local names | Back
to home page |
Quercus huicholensis | |
Author | R.A. MacCauley 2020 |
Synonyms | |
Local names | |
Range | Mexico (Southern Sierra Madre Occidental, from North of Jalisco to South Durango, in the Sierra de los Huicholes); 1650-2820 m; |
Growth habit | 1-13 m; trunk 10 to 45 cm in diametre; |
Leaves | 7-17 cm long, 4.5-15 cm wide, obova to suborbicular; apex obtuse; base cordate; margin subentire or irregularly toothed, with 0-14 bristle-tips mostly in apical half of the blade; 7-10 pairs of lateral veins, anastomosing near the margin; adaxially glabrous except on the midrib and the axils; abaxially densely tannish-gray to light gray-brown tomentose, with stipitate fascicled trichomes, hiding the papillose-bullate epidermis; petiole 0.4-2 cm long, tomentose; |
Flowers | male catkins pendulous, tomentose; pistillate catkins spreading to erect or somewhat pendulous, 0,5-4 cm long with 1-8 acorns |
Fruits | acorn 7-11 mm long, 6-8 mm wide, ovoid, 1/3 to 1/2 included in a 7-9 mm wide cup; |
Bark, twigs and |
bark gray-black, at firs smooth, becoming deeply fissured, corky; twig tawny tomentose at first, then glabrous and brownish-black |
Hardiness zone, habitat | rocky slopes, canyon sides; |
Miscellaneous | -- Sub-genus Quercus,
Section Lobatae, Series Erythtomexicanae, Group Racemiflorae; -- Species very similar to Q. conzattii (which was placed as a synonymous in the past), but the latter differs mainly in having pale gray (as opposed to golden brown to pale grayish brown) abaxial leaf pubescence, and having on average longer infructescences (1-6 cm long vs 0.5-4 cm); |
Subspecies and varieties |
|
Pictures |