Black cardamom (Amomum subulatum), a spice native to the Himalayas and cultivated today in Nepal, India, China, and Bhutan, has larger, deeply ridged pods that are dried over wood fires. As a result, the pods take on a dark brown color and a bold, smoky flavor that would overwhelm a sweet cake or pudding, but in a spice rub for roasted meat or in a full-flavored stew it imparts a smoldering depth no other spice can.