By Josh Gaskamp
Characteristics: Greenbrier is a perennial, warm-season woody vine native to the eastern two-thirds of North America, including the Southern Great Plains. It can climb into tree canopies using tendrils or when there is little competition for sunlight, it can be very aggressive, forming dense thickets. Greenbrier is a common understory plant but can be found in open areas.
Leaf blades vary in size and color, are often heart or deltoid shaped and develop a waxy coating and white blotches when mature. Leaf margins and stems have claw-like prickles.
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