Nope, it’s algae. From Inhabitat:
Lighting design has come a long way. Julian Melchiorri, a London-based designer and engineer, created this extraordinary living chandelier that not only lights up the room, but also actively purifies the air around it. Currently on display at the V&A Museum for London Design Week, the Exhale Chandelier features glass leaves filled with green algae that absorb CO2 and release oxygen.
I dunno. Gotta like this pic, though.