Gorniak S L, de Souza-Spinosa H, Palermo-Neto J, Ferro V O, De Oliveira F
Vet Hum Toxicol. 1986 Dec;28(6):542.
Palicourea marcgravii (Rubiacea) is the major toxic plant to cattle in Brazil. We show the presence of the xanthinic alkaloid, caffeine, in this plant's leaves.
