There are different chemotypes of the Phalaris sp. containing DMT or 5-MeO-DMT. It seems that cultivars containing DMT are low in 5-MeO-DMT and vice versa. Some contain no interesting alkaloids. Many are high in b-carbolines, which can be strong MAOIs and there is also the theory that some may be implicated in metabolism analogous to MPTP, leading to Parkinson. I think Phalaris staggers in cattle are a neurodegenerative disease, probably unrelated to gramine (which does not seem to be as bad as people made it out to be). Phalaris is not something one just does, you need TLC analysis. I think there is one present cultivar stable in seeds called "Tannite" which can be gotten by some of the Phalaris enthusiasts, it is one that contains significant quantities of 5-MeO-DMT. Time of the year is also important. Cultivars for use for feeding have been selected for low alkaloid content in general afaik and are uninteresting, wild patches or material obtained from "ethnobotanical" enthusiasts should be used.
Along the scythe you definitely want to bring some TLC plates...