Pneumonanthe oregana (Engelm. ex A.Gray) Greene
Gentiana affinis subsp. rusbyi (Greene ex Kusn.) Halda
Pneumonanthe affinis (Griseb.) Greene
Dasystephana oregana (Engelm. ex A.Gray) Rydb.
Dasystephana oxyloba Greene
Dasystephana bigelovii (A.Gray) Rydb.
Gentiana rusbyi Greene ex Kusn.
Pneumonanthe bigelovii (A.Gray) Greene
Pneumonanthe rusbyi (Greene ex Kusn.) Greene
Gentiana interrupta Greene
Gentiana affinis var. brachycalyx A.Gray
Gentiana affinis var. forwoodii (A.Gray) Kusn.
Gentiana affinis var. bigelovii (A.Gray) Kusn.
Pneumonanthe interrupta (Greene) Greene
Pneumonanthe forwoodii (A.Gray) Greene
Gentiana forwoodii A.Gray
Gentiana oregana Engelm. ex A.Gray
Dasystephana forwoodii (A.Gray) Rydb.
Dasystephana rusbyi (Greene ex Kusn.) Wooton & Standl.
Dasystephana interrupta (Greene) Rydb.
Gentiana bigelovii A.Gray
Dasystephana affinis (Griseb.) Rydb.
Gentiana affinis var. parvidentata Kusn.
Gentiana affinis var. ovata A.Gray
Gentiana affinis var. major A.Nelson & J.F.Macbr.