Jumbo Rafflesia has the following moves (there may be more but we got too tired to keep killing them to find out.)
Bloody Caress: HP Drain (single target)
Seedspray: Directional? Def down. (Erase-able)
Viscid Emission: AoE Amnesia...
Rotten Stench: AoE Acc and Magic Acc down (Erase takes one at a time, usually Magic Acc first...)
Floral Bouquet: AoE Charm? (Saw this one used as it was very low on HP so the charm effect may have been too brief to really comment... -_-)
Aggro:
Linking, and we believed it to be sight aggro at first when fighting the Rafflesia in Meriphtaud. Housemate (Lirianuin) got very close to it without sneak on and only invis. He dropped invisible in front of it and attacked it. We now think this decrepency may be due to lag.
In Fort K-N however, he aggroed a single Jumbo Rafflesia (...) from a whole group whilst running past them without Sneak but Invisible. This leads me to believe at least Jumbo Rafflesia are sound aggro, though we have to go back and test if the Family itself has a singular aggro method.