1. Small blue-flowered fringed gentian of western United States (Rocky Mountains) especially around hot springs in Yellowstone National Park
   - Gentianopsis thermalis

Type of: fringed gentian

• genus Chordeiles
• genus Chordospartium
• genus Choriotis
• genus Chorizagrotis
• genus Chorizema
• genus Christella
• genus Chronoperates
• genus Chrysanthemum
• genus Chrysaora
• genus Chrysemys
• genus Chrysobalanus
• genus Chrysochloris
• genus Chrysolepis
• genus Chrysolophus
• genus Chrysophrys
• genus Chrysophyllum
• genus Chrysopsis
• genus Chrysosplenium
• genus Chrysothamnus
• genus Chunga
• genus Cibotium
• genus Cicada
• genus Cicer
• genus Cichorium
• genus Ciconia