Salad Pepperomia, Vietnamese Crab Claw Herb (Rau Càng Cua or Rau tiêu). It is a small tropical plant with bright green heart-shaped shiny succulent leaves used in salad. The best salad plant ever! The whole plant's foliage (all leaves and branches) is washed and tossed into salads. Goes well with any of your favorite salad dressing.