The difference is primarily a chemical one, with their structures being different, however, both CBD and THC (the main active component of cannabis) are members of the cannabinoid family
"ITIS Standard Report Page: Cuphea ignea"
Description Reproduction on digitally printed canvas
On-pack labelling of tar and nicotine yields commenced in Australia in 1982 and carbon monoxide yields were included from 1989
Fresh insights on such notables as John Carter Brown, George Brinley, Henry Huntington, Estelle Doheny, and Frank Hogan were possible through examination of letters and papers on file at the Grolier Club in New York City, the Rosenbach Museum and Library in Philadelphia, the Huntington Library in California, the American Antiquarian Society and the Boston Athenum in Massachusetts, the John Carter Brown Library in Providence, the Newberry Library in Chicago, the Watkinson Library in Hartford, and from oral histories maintained at the University of California at Los Angeles and Columbia University in New York