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The abundance of the identified alkaloids in P. nudicaule and P. rhoeas, as determined by liquid chromatography high-resolution mass spectrometry (LC-HRMS). Bars with white and black colors represent specimens of 2017 and 2018, respectively. Reticuline (1), demethylcoclaurine (2), armepavine (3), coclaurine (5), N-methylcoclaurine (6), rhoeagenine (11), rotundine (27), cryptopine (29), protopine (32), muramine (39), allocryptopine (41), and rhoeadine (43).
