The plant commonly affected by  Rhodococcus fascians is a genus of pine trees. Encycliais as well.
Nicotiana ( ) is a genus of herbaceous plants and shrubs of the family Solanaceae, that is indigenous to the Americas, Australia, south west Africa and the South Pacific. 
Encyclia is a genus of orchids. 
 Because it commonly afflicts tobacco ("Nicotiana") plants, it is an agriculturally significant pathogen. 
