I do believe that is an onion flower. ;) Lovely photo Hive account@mkslash
If you check my profile you will see that i am a mod @ https://deeponion.org which is a tor integrated cryptocurrency which is offering Onion$ in the airdrops at bitcointalk to members who created the account on or before the 1st of Sept 2017 and are at least Jr Member status there.

More more information on the DeepOnion signature airdrop rules visit https://deeponion.org