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.
Lots of slapstick: Captain Underpants jumps out of windows, nearly falls to his death, punches bad guys (a mime, in one case), etc.; a villain is hit by vehicles three times in quick succession. Krupp always seems to be angry and yells a lot.