arum vs loofah

arum

• A flower or plant in the genus Arum 

loofah

• A tropical vine, of the genus Luffa, having almost cylindrical fruit with a spongy, fibrous interior; the dishcloth gourd 

• Any bathing sponge 

• The dried fibrous interior used as a sponge for bathing 

• To clean or scrub with a loofah.