Quercus austrina (Bluff-Oak, Bastard White Oak)


Botanical Information

FamilyFagaceae
GenusQuercus
Speciesaustrina
Synonymsdurandii var. austrina
CategoryWoody
OriginSoutheastern United States of America.

Details

USDA Hardiness Zone5 - 6
USDA Hardiness Ref.
Canadian Hardiness Zone4a - 6a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H6
RHS Hardiness Ref.
Temperature (°C)(-26) - (-18)
Temperature (°F)(-15) - 0
Height20-30 m

Description and Growing Information

General DescriptionThis species has been placed on the IUCN Red List as least concern.
ShapeBroad crown.
CultivationRich, moist soil.
HabitatBluffs and along rivers at an altitude of 0-200 m.
Bark/Stem DescriptionScaly bark, older trunks with wide ridges and dark brown branchlets.
Flower/Leaf Bud DescriptionPointed, pubescent and dark brown, 3-5 mm in length.
Leaf DescriptionElliptic to oboval, 3-7 shallow and round lobes, vibrant green with a baler glabrescent underside, a cuneate base and 4-8 veins on either side of the midvein, 7-10 x 3-6 cm.
Fruit DescriptionAcorn, oval, singular or paired.

Photographs