| Quercus grahamii | |
| Author | Benth. 1840 Pl. Hartw. 57 |
| Synonyms | grahamii f. brevipes Trel.
1924 grahamii f. nelsonii Trel. 1924 |
| Local names | encino chilillo ; |
| Range | Mexico (Chiapas, Nayarit, Durango, Guerrero, Jalisco, Michoacan, Puebla, 0axaca) from 600 m to 2500 m ; Guatemala; Belize; Honduras; |
| Growth habit | 10-30 m ; trunk from 30 cm to 1 m in diameter; |
| Leaves |
5-14 cm long, 2-4 cm wide; 3-4 times as long as wide; persistent until next leaves appear; subcoriaceous, stiff; more or less narrowly elliptic or elliptic-lanceolate; apex pointed, sometimes attenuate, bristle-tipped; base rounded or attenuate, often oblique; margin often undulate, entire or more often with 5 to 13 short, bristle-tipped teeth on each margin, sometimes only on apical 2/3; mature leaves shiny above, glabrous or with trichomes along midrib; paler underneath, glabrous or sometimes with axil tufts of stellate hairs, without glandular hairs; 5-13 straight veins pairs flat adaxially, slightly raised beneath; epidermis smooth, not papillose; 0.9-2 cm long, glabrous petiole; |
| Flowers | from January to April; male catkins 7-13 cm long, hairless, with 10-35 flowers; pistillate ones 0.5-2 cm long, 1 to 5-flowered; |
| Fruits | acorn 1-1.9 cm long, glabrescent, with thin pericarp; singly or paired, sessile or on a very short peduncle, ovoid; enclosed for 1/3 or 1/2 of length in a shallow cup with straight rim, covered with smooth, appressed, tomentose scales; maturing in 2 years; |
|
Bark, twigs and |
dark coffee-coloured, furrowed bark; 1 to 3 mm long twigs, at first yellow brown tomentose, then glabrous with few stellate hairs, reddish brown, with yellow lenticels; brown, ovoid, pointed buds, 3 to 6 mm long, with hairy scales; stipules 5 mm long, pubescent, deciduous; |
| Hardiness zone, habitat | a little tender, but withstands -15°C; |
| Miscellaneous |
-- A. Camus : n° 307; |
| Subspecies and varieties |
-- hybridizes with Q. mexicana; |
| Pictures |
More pictures Here
|
