Catbrier
Smilax rotundifolia · Smilacaceae (Catbrier or Greenbrier family)
AI-generated identification · may be incorrect
Leaf Morphology
Leaf Type
Simple, deciduous perennial vine
Shape
Cordate to broadly ovate with an acute to rounded tip
Margin
Entire, smooth, with a slightly wavy edge
Arrangement
Alternate along the climbing or trailing stems
Venation
Palmate-netted venation with 3 to 5 prominent veins radiating from the base, curving toward the leaf tip
Key Features
Distinguished by its shiny, heart-shaped leaves with prominent palmate veins from the base, paired tendrils arising from the leaf petioles, and often prickly woody stems
Description
Smilax rotundifolia is a woody, climbing vine armed with sharp prickles on its stems. It produces shiny, heart-shaped leaves and inconspicuous greenish flowers followed by bluish-black berries. The stems often feature tendrils that help the plant climb over shrubs and trees.
Habitat
Thickets, brushy borders, woodlands, fence rows, and disturbed areas in moist to dry soils with partial to full sun
Native Range
Native to eastern North America, spanning from Ontario south to Florida and west to Texas