Update: it actually has 5 main leaf sets if you include the secondary leaf set w/ only 1 finger each. Also: the stems of the affected leaves are quite red on top and a normal (?) pale yellow/green on the bottom. And: the whole plant is actually a fairly pale yellow color. Now this one was one of the Durban Poison X Skunk #1 freebies from nirvana, and I was being stupid when I planted that particular one. Its soil is about 8 parts seed starter soil 1 part bone meal and 1 part blood meal so its probably pretty hot soil. I've also been bottom watering (placing pots in a bowl w/ water in it, allowing water to saturate only the bottom of the pot, before lightly moistening the rest of the soil by contact)............

I know I know -- KISS -- I just can't help it!!!