Quick Quiz: Nouns Score: Change category, Flip order Reset Incorrect! Try again. Noun: genus polypodium Your choice? a genus of Aphididae   (Noun: genus prociphilus) a genus of ferns belonging to the family Polypodiaceae and having rounded naked sori widely distributed genus of herbs or shrubs with glandular compound leaves and spicate or racemose purple or white flowers   (Noun: genus psoralea) pentails   (Noun: genus ptilocercus)