Flower nectar drop only?

Is there any mobs that drops only flower nectar?I planned farming fn 24/7 to make money, rev 4 prices r rising af

 

Nothing only has one drop, and all the things that drop flower nectar have two more common drops (flower nectar is the rarest material drop)

You should always be able to find a party farming povas at lonogo canyon though

 

farfalla in darkanon plain
the drop rate is higher than pova and they spawn like blue jelly

fimera in dunkel valley always drops 10 at once, but you can't mass kill it.
shadow fly in dark castle drops it too, but it has a slow spawn...