A few other interesting tidbits if I recall correctly:

The term "Thousand Maws of Toto-Rak" stems from a beast of specifically padjali myth.

The elemental of nhilism refers to the "pact of Gelmorra" at one point, inferring a responsibility placed upon by the padjal by the elementals. It may even be when the padjal first came into existance.

From the Lodestone:
Eldest of three siblings of Padjali ancestry, Kan-E serves as head of the Seedseer Council─the central governing body presiding over affairs within the city-state of Gridania. As is common amongst those born of the prestigious Senna line, Kan-E was blessed by the Twelve with the gift of prophecy, her visions hauntingly clear and detailed. Before reaching her sixth nameday, she had already predicted a devastating fire and a locust infestation, earning her remarkably early admission to Stillglade Fane. After becoming a Sister of the Twelveswood, it was not long before she had risen to Elder Seedseer and left Gridania to live in the forest with her siblings, where she served the city-state by communing with the elementals, maintaining the delicate balance betwixt man and nature.
So yes, the padjal can have their own children (don't ask how this works) and it thus appears people are born as padjal and grow until they reach a certain point, after which they become "ageless".