| Smilax jamesii, Smilax melastomifolia, Smilax auriculata, Smilax pseudochina, Smilax ecirrhata|Smilax californica Wikipedia
Smilax californica, the California greenbriar, is a common woody vine native to northern California and southwestern Oregon in the western United States.
The leaves are dull green, petioled, alternate, and circular to heart-shaped. They are generally 5–10 cm long. The stems are round, green and have sharp spines.
The plant is native to coniferous streambanks below 5000 feet.