Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Smilax rotundifolia

Roundleaf greenbrier, Common greenbrier

Smilacaceae (Greenbrier Family)

Smilax rotundifolia (Roundleaf greenbrier)
Cressler, Alan

Ranges through much of eastern North America, from eastern Texas and eastern Oklahoma, east to northern Florida, and north as far as southernmost Ontario and Nova Scotia in Canada, where its limited range qualifies it for threatened status under Canadas Species at Risk Act (SARA). Numerous birds and animals eat Common greenbrier fruits. The persistent fruits are an important late winter and early spring food for wintering birds, including northern cardinals and white-throated sparrows. Common greenbrier is a pioneer species that forms impenetrable thickets of prickly branches, which create good cover for small mammals and birds (USDA).

Image Gallery:

2 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Shrub
Leaf: Green
Autumn Foliage: yes

Bloom Information

Bloom Color: Green , Brown


USA: AL , AR , CT , DE , FL , GA , IL , IN , IA , KS , KY , LA , ME , MD , MA , MI , MN , MS , MO , NH , NJ , NY , NC , OH , OK , PA , RI , SC , SD , TN , TX , VA , WV , DC
Canada: NS , ON
Native Habitat: Forest,Woodland

Growing Conditions

Water Use: Medium
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist
CaCO3 Tolerance: Low


Warning: Thorns or prickles.
Attracts: Birds

Last Update: 2014-11-10