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Quercus arkansana
Quercus arkansana Sarg.
Arkansas Oak
Fagaceae (Beech Family)
Synonym(s): Quercus caput-rivuli
USDA Symbol: QUAR2
USDA Native Status: L48 (N)
Medium sized tree with a narrow crown, growing to 95 feet (28.9 m). Bark is black with deep furrows, inner bark orangish-red. TWIGS and BUDS are brown twigs with gray pubescence and prominent yellowish-brown lenticels; chestnut-brown, ovoid buds with slightly ciliate scale margins. Leaves obovate shape, 2 - 6 inches (51 - 152 mm) long, 1 3⁄8 - 4 inches (35 - 101 mm) wide; margin entire with 3 lobes and up to 10 bristle tips, shallow sinuses with rounded lobes; smooth and yellowish-green above, paler green with axillary tufts of pubescence beneath.
The Latin and common names are derived from its initial discovery in Arkansas. The IUCN considers Arkansas oak rare in Arkansas, endangered in Florida, and vulnerable in Alabama, Georgia, and Louisiana. The largest known Arkansas oak grows in Covington County, Mississippi.
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Plant Characteristics
Duration: PerennialHabit: Tree
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Obovate
Leaf Venation: Pinnate
Leaf Margin: Entire
Breeding System: Flowers Unisexual , Monoecious
Inflorescence: Catkin
Fruit Type: Nut
Size Notes: Usually up to about 50 feet tall. Can be up to close to 100 feet tall.
Fruit: Acorns biennial; thin, brown, goblet-shaped cup with pubescent scales, inner surface sparse to conspicuously pubescent, covers 1⁄4 - 1⁄2 of the nut; elliptical nut 5⁄8 inch (16 mm) long, mature nut is brown to black with faint stripes.
Bloom Information
Bloom Color: BrownBloom Time: Mar , Apr , May
Distribution
USA: AL , AR , FL , GA , LA , MS , TXNative Distribution: Arkansas and Louisiana east to Georgia and Florida.
Native Habitat: Occurs sporadically on well- drained sandy soils in hardwood stands.
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:Native Seed Network - Corvallis, OR
Bibliography
Bibref 1134 - Field Guide to Native Oak Species of Eastern North America (2003) Stein, John D. and Denise BinionSearch More Titles in Bibliography
Additional resources
USDA: Find Quercus arkansana in USDA PlantsFNA: Find Quercus arkansana in the Flora of North America (if available)
Google: Search Google for Quercus arkansana
Metadata
Record Modified: 2011-09-25Research By: DEW