Words That Rhyme With "Petalous" :
4 syllables:
apetalous, dipetalous, sympetalous, tripetalous
5 syllables:
antipetalous, choripetalous, epipetalous, gamopetalous, monopetalous, polypetalous
apetalous, dipetalous, sympetalous, tripetalous
antipetalous, choripetalous, epipetalous, gamopetalous, monopetalous, polypetalous