I believe this plant is growing spontaneously on this site, since itīs not exaclt a very valuable species, ornametally wise, like the other plants around it. Rio de Janeiro, early summer.
An example of normal 'corking'.
My jalapeno, container grown.
Closeup showing a red ripe jalapeno, next to a dark greenish-brown one getting ready to turn. The brown lines (corking) seen on the two fruits is fine, even considered desirable by some.
Almost corking jalapenos
September 2012 - Mason, New Hampshire