(-)-Maackiain is a pterocarpan phytoalexin produced from Red clover (Trifolium pretense L.). (-)-Maackiain is toxic to several genera of fungal pathogens of legume and non legume hosts[1].
[1]. ScottSoby, et al. Detoxification of the phytoalexins maackiain and medicarpin by fungal pathogens of alfalfa. Phytochemistry. 1996 Feb;14(3):759-765.
















