1. 柞栎：toothed lock washer ==> 齿式锁紧垫圈 | toothed oak ==> 柞栎 | toothed plate ==> 齿板
1. Highly variable often shrubby evergreen oak of coastal zone of western North America having small thick usually spiny-toothed dark-green leaves.
北美西部海岸地区的灌木状的常绿栎树，价值高，叶小而厚，具刺状锯齿，暗绿色。