Loaiza, JCM; Cespedes, CL; Beuerle, T; Theuring, C; Hartmann, T
(2007)
The occurrence of pyrrolizidine alkaloids (PAs) in Pittocaulon (ex Senecio) praecox (Asteraceae) a species endemic to Mexico was established. The aboveground plant organs contain the 1,2-saturated monoester 7-angeloyl-di ...