Tripterygium regelii, or Regel's threewingnut (Pinyin: Dōngběi léigōng téng),[1] is a rambling, shrubby perennial deciduous yellow vine native to Korea, Japan and Manchuria.

[2][3] "Tripterygium wilfordii Hook.f., known as Leigongteng (Thunder God Vine) in traditional Chinese medicine, has attracted much attention for its applications in relieving autoimmune disorders such as rheumatoid arthritis and systemic lupus erythematosus, and for treating cancer.

Molecular analyses of the ITS and 5S rDNA sequences indicate that T. hypoglaucum and T. doianum are not distinct from T. wilfordii, while T. regelii should be recognized as a separate species.

The results also demonstrate potential value of rDNA sequence data in forensic detection of adulterants derived from Celastrus angulatus in commercial samples of Leigongteng.

[6] Hypoglaunine B is a sesquiterpene alkaloid that is a macrolide incorporating a substituted pyridine and dihydroagarofuran moieties.