Houseplants safe for our cats

Since moving into our new apartment, and away from the unlimited garden of the old place, I miss greenery and have been looking for houseplants to fill that void.  The only problem is our two cats who love to chew on anything green we bring in.  I've made them their own pot of wheatgrass, which they love, and mow down as if they were a pair of grey sheep, but it isn't what I've been looking for as far as attractive and interesting greens for me!

Searching Pinterest and Google, I've found quite a few:
from  http://www.thegardenglove.com/easy-care-houseplants/ I found a nice list of safe, practically unkillable plants

Watermelon Begonia,Peperomia argyreia



                       

 










Spider Plant, Chlorophytum comosum









Grape Ivy, cissus














Cast Iron Plant, Aspidistra elatior






















Chocolate Soldier,Lace Flower Vine, episcia dianthiflora

Not so good:




Norfolk Pine















Schefflera



For best results, check out the full list on the ASPCA website: 
http://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants