The purpose of this study is to record the popular uses of various med
icinal plants collected in the market medicinal stalls of Monterrey, N
uevo Leon, Mexico. One hundred and thirty-five medicinal plants were c
ollected from 11 hierberias (stalls) of two mercados (markets) and two
additional medicinal plant sources. Included is a total of 70 species
in 65 genera of 38 plant families. The plant vendors of the hierberia
s were interviewed to determine the folk uses of these plants. Eighty-
five folk uses, of both general and specific nature, are reported for
the specimens collected.