Originally added a single flower: The Petro Petunia, a flower which exists to turn oil and other liquid fuels into mana. Configuration for Fluids, Burn time, and power-per-tick can be found in the Floralchemy config file in the acronym folder.
The Petunia is unchanged in V1.1.0 but a lot more has been added. The mod now works standalone - with an optional dependency on Botania for the Petunia. Check the file changelog for more information.