I'll shed some light on this 7 years later
This year I saw that one of my suppliers had Krishna Jolokia seeds and I was attracted by the photos and description which, as they say here, is all a copy and paste from other sites.
I can only find new one info that come from a wild variety from Assam.
This year I grew 2 Krishna Jolokia plants.
The seeds germinated well and the seedlings were very strong and resistant. They looked wonderful with their black stems and leaves. It grew rapidly.
As it grows, the black on the leaves disappears and only remains on the edges and some mottling.
When it is adult, there is only black and purple stems and quite dark leaves, some with black edges or veins.
The plant grows quickly and branches quite a bit. It was the first to bloom.
The flowers is violet. I get constant flowering and flower set for almost two months.
The pods is initially black and some is black with the part closest to the stem green, but when they grow they become black as well.
The pods take forever to ripen.
Krishna Jolokia was the first variety of 12 to flower and one of the last to give me ripe peppers.
The pods ripen from black to dark red. More than half of it shows nice black shading in places. It measure between 2 and 3" long and 1/2" wide.
Its a massive producer. I got about 80 pods per plant (in 5 gallon pot).
The flavor is wonderful. Flavor like Thai peppers, but much more intense, smoky and earthy. It also reminds me (a little) of the Carolina reaper flavor, but without the fruitiness.
The flavor lingers in the mouth for a while.
I made a fermented sauce with these that is delicious.
Also, it has a strong, long-lasting kick, perhaps the hottest annum I've ever tried. It can easily be twice as hotter than serrano.