Иссохший Аконит

The wither aconite uses up nether stars dropped on it to create mana from them. If the wither aconite can't use up the nether star after 5 minutes, it will despawn like any ordinary item.

The raindeletia produces mana when it's raining and even more mana when it's thundering. Planting it on vivid grass or enchanted soil makes it generate much more. On regular soil, it is even too weak to generate mana during normal rain.

At some point in your progression as a botanist, your flowers will create mana so fast, that spreaders are not enough to handle it. With the mana collector, you can put mana generated from flowers directly into a spark network. The mana collector acts as a little mana storage that can receive mana from flowers and interact with sparks. To extract the mana from the collector, you'll most likely need a recessive spark augment.