Agave victoriae-reginae T. Moore complex. In the Agave victoriae-reginae complex, recently proposed as a complex instead of a single species, formed by A. pintilla, A. nickelsii, A. victoriae-reginae subspecies victoriaereginae, and A. victoriae-reginae subspecies swobodae , 11 flavonols, majorly derivatives of quercetine-3- O-glycosides, but also one kaempferol-3-O-glycoside, one isorhamnetin derivative, and the kaempferol aglycone; besides of five flavones, nine dihydroflavonoids, and 15 phenolic acids were found . Agave pintilla was distinguished from the others taxa of the A. victoriaereginae complex by possessing four unique compounds. But the foliar phenol profiles did not allowed distinguishing between A. victoriae-reginae s. str. (A. victoriae-reginae subspecies victoriae-reginae and A. victoriae-reginae subspecies swobodae) and A. nickelsiae, as found by Martínez-Palacios et al.  using allozymes.