Question: Which plant genus has been used in more foods, Ophiopogon or Capsicum? 
Sentence (from "Centaurea"): Common names for this genus are centaury, centory, starthistles, knapweeds, centaureas and the more ambiguous "bluets"; a vernacular name used for these plants in parts of England is "loggerheads" (common knapweed).
Relevant evidence: No