I've been growing for about 8 years. In one of my most recent plants (a Black Domina Feminized seed), I noticed it looked a little odd after it was about 18" tall. It had a very tough start as a seedling. It came out of the ground with 2 dicot leaves and then slowly grew only one very small leaf for the longest time (about 3 weeks). After that it grew a couple more single leaflets. It started growing more normally at this point until I noticed the odd symmetry. Looking at the main stem I noted that instead of each node having 2 fan leaves and two branches, each node has 3 fan leaves and 3 branches. This progresses from the base to the top of the main growing stem (see picture below, sorry for the quality, I'm not that good at taking pics). This does not however continue in this manner on the side branches. These appear to be growing normally. I just noted the development of pistols on this girl, so I'll have to keep a look out to see what happens during flowering. Has anyone else seen this before. It's a new one to me.
i just kill the mutants.. its a very stretched out plant the internodal distances are large.. need more light and more blues..