Which plant genus has been used in more foods, Ophiopogon or Capsicum? 
Ophiopogon: Ophiopogon (lilyturf) is a genus of evergreen perennial plants native to warm temperate to tropical east, southeast, and south Asia. Capsicum:  In addition to use as spices and food vegetables, "Capsicum" species have also been used as medicines and lachrymatory agents.
Capsicum