Quercus nixoniana Valencia

Mexico (Guerrero, Jalisco, Oaxaca); 1300-2300 m;

reaches 25 m;

7-15 cm x 1-3; lanceolate to narrowly elliptic; 5 to 8 times longer than wide; evergreen; apex acute; base cuneate; margin entire, without teeth; dark green, glabrous above; hairless beneath, without glandular hairs; 15-22 vein pairs; petiole hairless, 0.5 cm long;

acorn ovoide, 1-1.5 cm; single to 3 on a short peduncle (to 2 cm long); rippening first year;

not hardy; tropical forests;

– Sub-genus Quercus, section Lobatae, Series Erythromexicanae; – Threatened (IUCN Red List Category : EN). – Closely related to Q.salicifolia and Q.iltisii , from which it differs in having leaves glabrous beneath; before 2003 it was described under name Q.salicifolia;