Rocoto is a medium size round pepper which is fiercely hot. Thick fleshed with small black seeds, it can sometimes be yellow or green but is usually red.
The species name, pubescens, means hairy, which refers to the hairy leaves of this pepper. The hairiness of the leaves, along with the black seeds, distinguish this species from others. As they reach a relatively advanced age and the roots lignify quickly.
Of all the domesticated species of peppers, this is the least widespread and systematically furthest away from all others.