What type of category does Typha and Caryota have in common?
Typha Typha is a genus of about 30 species of monocotyledonous flowering plants in the family Typhaceae. These plants have many common names, in British English as bulrush, or reedmace, in American English as cattail, punks, or corn dog grass, in Australia as cumbungi or bulrush, in Canada as bulrush or cattail, and in New Zealand as raupō. Other taxa of plants may be known as bulrush, including some sedges in "Scirpus" and related genera.
Typha domingensis Typha domingensis, known commonly as southern cattail or cumbungi, is a perennial herbaceous plant of the genus "Typha".