t-ace. MANY fish stores (including Petco and Petsmart as well as smaller non chain) carry "aquatic" plants that arent truly aquatic. A few names for them could be Brazilian Sword, (not amazon sword which IS aquatic), Aluminum plant, Purple Waffle, Dracaena, and Lucky Bamboo. Before adding any plants to your aquarium ID them online or post pics here. That way if they sell you something that isnt going to last you,can return them. This is very very common and most plant keepers have done this.

I would also recommend dipping in a one part bleach to 19 parts water solution of bleach for a minute. Followed by lots of rinsing. I even use a little toothbrush while rinsing to clean off any hitchhiking snail eggs. Snails can get out of control when you add plants.