The relationship with
Roridula consists primarily of the fact that
Roridula produces a resin that cannot digest captured insects like other carnivorous plants such as
Dionaea muscipula,
Drosera,
Pinguicula, and
Nepenthes. Thus,
P. roridulae and
P. marlothii devour the trapped insects on the
Roridula and then excrete waste that is consumable by the plant to supplement its diet, since it grows in nutrient poor soil. Without the
Roridula,
Pameridea cannot find a food source and ultimately die. Because
P. roridulae and
P. marlothii eat and digest the food for the plant, some
carnivorous plant enthusiasts consider
Roridula only
sub-carnivorous. However,
Sarracenia purpurea uses a variety of worms to digest captured
arthropods for them, as does
Darlingtonia californica, and these plants are generally considered carnivorous.
Pameridea have special feet with hairs on them that allow them to run through the plants' resin without being caught in it. ==References==