The single-bladed leaves- I've seen those in my garden too.
I think the strain 'Mikado' from Federation Seeds has that as one of its characteristics.
Otherwise I've read polyploidy can cause it.

Shaggytodope, what's your humidity? That almost but not quite looks like a really f-'d up attempt to air root!
stinkyattic Reviewed by stinkyattic on . MUTANT PLANTS MAZAAR HECK OUT THIS LITTLE MUTANT! Wierd growths along top of leaf stems. Anybody ever see this? SPECIAL LITTLE MUTANT! Everbody post pics of your little mutant plants:smokin: :smokin: Rating: 5