This is a red common Dianthus, or carnation as it's also called. Traditionally, this is the kind of flower people put in the buttonholes of their clothes, to try to look unsuspicious and to enable others who have the same motives to recognise them. Often used by criminal organizations.

You were handed this carnation from someone who had a face it's easy to forget. There's been rumors on the streets of a group called The Lotus Consortium and how they use flowers to send messages. Maybe this flower is a message to mark you as someone who can be trusted... or maybe it is to mark you as a target...