Oaks of the World

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  Quercus castanea
Author

Née 1801 Anales Ci. Nat. 3: 276 1801

Diagnosis here

Synonyms alamosensis Trel. 1924
axillaris E. Fourn. ex Trel. 1924   (A. Camus : 317)
castanea A.DC
castanea var. elliptica Trel. 1924
circummontana Trel. 1924
consociata Trel. 1924
crassivenosa Trel. 1924  (A. Camus : 309)
impressa Trel. 1924     (A. Camus : 381)
lanigera Martens & Galeotti 1843    (A. Camus : 373)
mucronata Willd. 1805
pulchella Humb. & Bonpl. 1809
rossii Trel. 1924
rossii Trel. fo. arsenei Trel. 1934
scherzeri Trel. 1924
seleri Trel. 1924
serrulata Trel. 1924
simillima Trel. 1924
spathulistipula Trel.1934
subcrispata Trel. 1924
tepoxuchilensis Trel. 1924   (A. Camus : 378)
tristis Liebm. 1854   (A. Camus : 376) Diagnosis here
verrucosirama Trel. 1924     (A. Camus : 379)
Local names Encino cascara roja;
Range Mexico (Colima, Chiapas, Mexico, Michoacan, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Morelos, Nayarit, Oaxaca, Puebla, Querétaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas and Veracruz); Guatemala; 800 - 2600 m (to 3500 m in Guatemala);
Growth habit 8-10 m tall; trunk to 40 cm in diameter;
Leaves 5-11 x 2-4 cm; leathery, stiff; elliptic, oblong, oboval or oblanceolate; apex obtuse to pointed, shortly aristate; base obtuse, subcordate, truncate or slightly oblique; margin flat or weakly thickenned, cartilaginous, with 2-6 pairs of short aristate teeth in the distal half or third, but sometimes entire (only aristate, without teeth), or toothed only near apex; green, lustrous, rough, glabrous (except near petiole) above; tomentose beneath with fasciculate, sessile trichomes and sometimes glandular simple hairs, at first yellow then whitish grey; epidermis bullate; 7-13 pairs of lateral veins impressed above, raised beneath; petiole light yellow brown, more or less pubescent, 3-13 mm long;
Flowers June-July ; male catkins 6 cm long, pubescent, with 20-30 flowers; female inflorescences 1 cm with 1-2 flowers;
Fruits acorn 9-11 mm, broadly ovoid ; singly or paired, sessil or on a stout stalk 2-5 mm long; enclosed 1/3 in cup; cup halfround to obconical, 7-12 x 3-7 mm, with thin pubescent scales; maturing in 1 year, from October to January;

Bark, twigs and
buds

bark grey, smooth, becoming furrowed; twigs 1-2 mm thick, coffee tomentose, glabrescent; few inconspicuous lenticels; bud ovoid, ellipsoid to conical, pointed, light brown, 1.8-3.6 mm long, 1.4 mm wide, scales ovate ciliate at margin; stipule soon deciduous;
Hardiness zone, habitat hardy zone 8; prefers dry, well drained soils;
Miscellaneous -- A. Camus : n 375;
-- Sub-genus Quercus, section Lobatae;
-- For Tracey Parker (Trees of Guatemala, 2008), Q. tristis is a true species.
Subspecies and
varieties
-- Q. castanea var. tridens (Bonpl.)A.DC 1864
= Q.tridens Bonpl. 1809
sometimes regarded as a synonym for Q.laurina (S. Valencia-A., 2004); for Govaerts & Frodin it is a true species; sometimes less than 3 m. Mexico (Hidalgo);

-- Hybrids with Q. eduardi, Q. sapotifolia

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