A bunch of crystilia
Crystilia were flowering plants native to Telemarius IV. Crystilia blossoms produced a fragrance pleasant to Humans that was a biochemical response to the acrid atmosphere of their native planet.
Lieutenant Commander Data presented a bouquet of a variety of crystilia to Lieutenant Jenna D'Sora in 2367, when the two were "dating". Data's choice came from Commander William Riker's recommendation, since crystilia had "worked for him before". (TNG: "In Theory")
External link
- Crystilia at Memory Beta, the wiki for licensed Star Trek works