useless trivia: What Word Means: Trappings For A Horse Or Elephant?

Questions

Common name for any member of a family of annual & perennial herbs & shrubs, native to subtropical & temperate regions worldwide?

Common name for any member of a genus of plants, of the mustard family?

Common name for any of a genus of coniferous trees (pine)?

Common name for any of a group of mainly aquatic arthropod invertebrates, including the crab, lobster, & shrimp?

Common name for any of a large family of luminescent beetles?