11Cayenne pepper
Mixing cayenne pepper or other chili peppers into underwater marine paint helps prevent barnacles from attaching to the boat hull.
12Vanilla beans
Vanilla beans can only be pollinated within 12 hours of blooming, either by hand or a special variety of Mexican bee.
13Cardamom
Saffron, cardamom, and vanilla are the three most expensive spices (by weight).
14Anise
Anise, the herb that flavors traditional absinthe, Jagermeister, Ouzo, etc. can relieve menstrual cramps.
15Fennel
Fennel is widely employed as a carminative to treat flatulence by encouraging the expulsion of intestinal gas.
