Non-toxic Plant List?

I have found two online lists of plants that are supposedly non-toxic to cats. But I already see that one list names aloe, the other one does not. *sigh* Does anyone know of a truly comprehensive list of plants that are non-toxic for cats? (I do not want my cat gnawing on any houseplants, but I'd rather the plant be non-toxic, lest he get the idea to gnosh a bit.)

Thank you,

Jenk

I have been looking for this also and finally decided to go with plants that everyone agreed were non-toxic. I think some of the confusion has to with plants having different levels of toxicity - aloe will make them throw up, but I think they would have to eat alot of it to be harmed (my cat nibbled on it, threw up and was fine, but I got rid of the plant after that)

Also watch out for lists that only use common names as they can refer to VERY different plants!