Quercus ajoensis (Ajo Mountain Scrub Oak)


Botanical Information

FamilyFagaceae
GenusQuercus
Speciesajoensis
CategoryWoody
TypeShrub (evergreen)
OriginBaja, California, and Arizona and Colorado, United States of America and Mexico.

Description and Growing Information

General DescriptionThis species has been placed on the IUCN Red List as globally threatened.
HabitatIgneous slopes at an altitude of 500-1,500 m.
Bark/Stem DescriptionScaled and furrowed grey bark with light brown twigs.
Flower/Leaf Bud DescriptionOvoid or globose, brown or reddish-brown, 1-1.5 mm.
Leaf DescriptionOvate or oblong, thick, glabrous, alternate teeth with a cordate base and 5-8 secondary veins on either side of the midvein, 1.5-3.5 x 1-2 cm.
Fruit DescriptionSingular or paired acorns, with brown scales, 3-4 x 6-8 mm. Oblong to ovoid nut, 12-15x 5-8 mm.

Photographs