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Quercus arkansana Sarg.
Synonyms: Quercus caput-rivuli
USDA Symbol: QUAR2
USDA Native Status: Native to U.S.
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.
Plant CharacteristicsDuration: Perennial Habit: Tree Leaf Arrangement: Alternate Leaf Complexity: Simple Leaf Shape: Obovate Leaf Venation: Pinnate Leaf Margin: Entire Breeding System:
, Monoecious Inflorescence: Catkin Fruit Type: Nut 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. Size Class:
Bloom InformationBloom Color: Brown
Bloom Time: Mar , Apr , May
AL , AR , FL , GA , LA , MS , TX Native Distribution:
Arkansas and Louisiana east to Georgia and Florida. Native Habitat:
Occurs sporadically on well- drained sandy soils in hardwood stands. USDA Native Status: L48(N)
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
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Record Modified: 2011-09-25
Research By: DEW