A few species of bromeliads (Bromeliaceae), such as Brocchinia
reducta and Catopsis berteroniana, are known or suspected to be
carnivorous. Bromeliads are monocots, and given that they all
naturally collect water where their leaves meet each other, and that
many collect detritus, it is not surprising that a few should have
been naturally selected to develop the habit into carnivory by the
addition of wax and downward-pointing hairs.