Blackjack Oak is a small, scraggly oak of the driest, most impoverished sandy and rocky soils in the central and eastern United States. Its distinctive three-lobed leaves are wider at the tip than the base, making them unmistakable. It is a stress-tolerant species that thrives where other oaks fail, often growing with post oak in 'Cross Timbers' habitat.
Best time to see a Blackjack Oak
The best time to see a Blackjack Oak is March–August, when about 63% of U.S. sightings happen, based on 11,759 research-grade iNaturalist observations.
Not certain it is a Blackjack Oak? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Blackjack Oak sightings near you
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