blackjack oak Directory References Discover How Deadly Is Quicksand? 7 Everyday English Idioms and Where They Come From Spies Like Us: 10 Famous Names in the Espionage Game Poker Hands Ranked Water Fluoridation: Just the Facts Why Do Some Cicadas Appear Only Every 17 Years? 7 Deadliest Weapons in History Contents blackjack oak plant Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Quercus marilandica Learn about this topic in these articles:description In red oakThe blackjack oak (Q. marilandica), a cover tree on sandy soils in eastern North America, is about 9 to 15 m tall, with leaves that bear three lobes at the wide apex; they are glossy and dark green above, rusty and hairy below.Read More