Certain orchids, such as moth and slipper orchids, also fall into this category.
For example, tropical slipper orchids have been the subject of intense collection pressure.
Cypripedium flavum is a rare, endemic alpine slipper orchid of China, which is under threat from excessive collection and habitat changes.
It is the hybrids that immediately catch the eye - but then, that is what they are bred to do - such as the lovely pink slipper orchids, Phragmepedium hannae, and P ainsworthii.