Texas Wildbuds
Smilax rotundifolia
(Roundleaf Greenbrier)
Smilax rotundifolia, Acorn Woods Park, Grapevine, Tarrant Co. 1139
Smilax rotundifolia, Acorn Woods Park, Grapevine, Tarrant Co. 1112
Smilax rotundifolia, Acorn Woods Park, Grapevine, Tarrant Co. 1140
Smilax rotundifolia, Acorn Woods Park, Grapevine, Tarrant Co. 1127
| Scientific Name | Smilax rotundifolia | USDA PLANTS Symbol | SMRO |
| Common Name | Roundleaf Greenbrier, Horsebrier | ITIS Taxonomic Serial No. | 43346 |
| Family | Smilacaceae (Catbrier) | SEINet Reference |
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| Description | Habitat: Moist to somewhat dry soils in woods, fields, thickets, hedgerows, etc. Plant: High-climbing perennial vine with hairless, woody, branching stems up to 20 ft long; stems have green prickles with dark tips; numerous tendrils. Leaves: Alternate, shiny bright green leaves, usually ovate to broadly ovate with rounded point tips; blades are 1-1/2 to 6-1/2 inches long and about as wide on short petioles 1/2-inch or less long; leaves are both evergreen and deciduous. Inflorescence: Dioecious flowers (male and female on separate plants) in umbels in leaf axils, each with 5 to 20 flowers; blossoms have 6 yellowish-green to bronze tepals 3 to 4 mm long and white anthers. Bloom Period: March to June. Fruit: Blue-black to black, round berries, 0.2 to 0.3 inches in diameter with dull surfaces. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2025