| Quercus repanda | |
| Author |
Bonpl. 1809 Pl. Aequinoct. 2: 31 Diagnosis here |
| Synonyms | lecomteana Trel. 1924 revoluta Trel. 1924 Diagnosis here subtriloba Trel. 1924 Diagnosis here supranitida C.H.Mull. 1942 |
| Local names | |
| Range | Mexico
(Hidalgo, San Luis Potosi, Guanajuato, Mexico, Puebla, Queretaro, Tamaulipas,
Tlaxcala, Veracruz) ; |
| Growth habit | very
small shrub, 0.3-1.2 m tall, seldom more than 2 m; |
| Leaves |
3-8
x 1.5-4 cm; deciduous or semi-evergreen; oblanceolate to obovate, elliptic
or oblong; thick, leathery; apex obtuse, sometimes rounded, mucronate;
base rounded or cuneate; margin thickened, revolute, cartilaginous,
entire, crenate or with 2-3 pairs of mucronate teeth; dull, dark greyish
green above, with scattered pubescence made of sessile, 14-16 rayed
stellate trichomes, and dark glandular (less than 0.05 mm long) hairs;
densely, rusty tomentose (not scratchable and masking totally the epidermis)
beneath with 16-21-rayed tangled stellate trichomes, sessile or shortly
pediculate, and reddish glandular hairs; |
| Flowers | May; male catkins 0,4-2 cm long, with numerous flowers ; |
| Fruits | acorn
1-1.5 cm long, 1-1.2 cm in diameter; ovoid, sometimes globose; mucronate;
singly or paired, on a 1-2.5 cm long tomentose peduncle; enclosed 1/2
or 1/3 by the cup; cup 10-13 mm in diameter, with thin, tomentose, reddish-tipped
scales; |
|
Bark, twigs and |
bark
grey; twig 1-3 mm thick, pubescent first year, with yellowish lenticels;
bud subglobose 2-3 mm; stipules pubescent, persistent; |
| Hardiness zone, habitat | probably hardy; |
| Miscellaneous | --
A. Camus : n° 244 ; -- Sub-genus Quercus, Section Quercus, Series Leucomexicanae; -- Closely related to Q.microphylla, but microphylla is deciduous, its leaves are shorter, and foliar trichomes have less than 15 rays; -- Resembles Q. frutex, trichomes of which have only 5-9 rays and which has a less dense foliar tomentum beneath, not masking the epidermis; resembles also Q. greggii, but this species has the lateral veins strongly impressed above, and his range is at 2700-3200 m in the North of the 24th parallel. |
| Subspecies and varieties |
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| Pictures |
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