Dermatophyllum secundiflorum Dermatophyllum secundiflorum Dermatophyllum secundiflorum is a species of flowering shrub or small tree in the pea family, Fabaceae, that is native to the southwestern United States (Texas, New Mexico) and Mexico (Chihuahua and Coahuila south to Hidalgo, Puebla and Querétaro). Common names include Texas mountain laurel, Texas mescalbean, frijolito, and frijolillo. Although "mescalbean" is among the plant's common appellations, it bears no relation to the "Agave" species used to make the spirit mezcal, nor to the peyote cactus ("Lophophora williamsii"), which contains the hallucinogenic alkaloid mescaline. It is well-adapted to arid and semi-arid habitats but is most common in riparian
Angelicin are three hypotheses proposed to explain the phenomenon: The phototoxic properties of angelicin were deployed by its use as a natural pesticide and disinfectant. Note that it is difficult to readily determine whether only angelicin poses the highest risk of phototoxicity and photomutagenicity as in plants angelicin always occurs in a mixture with angelicin derivatives, psoralen and other furanocoumarins. Moreover, the furanocoumarin composition of most plant species is not definitely known as well as the toxic properties of some furanocoumarins. Angelicin Angelicin is the parent compound in a family of naturally occurring organic compounds known as the angular furanocoumarins. Structurally,