They sell a one month 1/2 fare card which doesn't require a picture.
The 1 year cards have a picture and I think are only sold in Switz.
Based on OP's post I think he purchased a one month card. For these they may ask for ID (passport?).
If you have any document linking both names, you would not be in trouble--but it can't hurt to stop into any SBB ticket office and check with them.

[When one first purchases (even) the one year card, they give you a 2 week temp. card (with NO picture)--I've had them ask for id's a few times in that 2 week period.]