Plants are classified into several different types including the mosses and liverworts (Bryophyta), the clubmosses and horsetails, the ferns (seedless Tracheophyta), and the gymnosperms and angiosperms (seed plants). Only the last group the angiosperms have flowers.
Slapstick is a descendent of the comic routines of Italian commedia dell'arte (mid-fifteenth to mid-seventeenth century) touring players, who developed basic plot scenarios and broad, swiftly drawn characters.
I have seen and been amused by other Rob Schneider movies so I knew the type of slapstick humor to expect from Big Stan. I winced a bit at the more overt sex jokes and crude language compared to Rob's other films but I suppose that crudeness is not much different from many Judd Apatow or Seth Rogen movies.