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.
Most of the silent era comedy featuring slapstick can be an example of low comedy. Pantomime or miming would definitely count as low comedy as well. However, classification of what exactly is low comedy is somewhat malleable as genius artists like... This page may be out of date.