As of Wuthering Waves Version 1.0, characters who are using Coriolus as Ascension materials are Mortefi, Lingyang, and Yinlin. You can find this ascension mat in multiple locations, namely Forbidden Forest and Giant Banyan in Dimm Forest.
All 45 Coriolus in Wuthering Waves
You can find the first 30 Coriolus in the marked location above. Most of them are paired and all of them grow on the huge tree root. So if you're lost, look around for a huge tree root and there should be the Coriolus. And of course, you can also refer to the video on top for the location of each flower.
Friendly reminder that there are a lot of enemies in Forbidden Forest so prepare to sprint most of the time.
For the last 15, you can buy it from Koko in Shifang Pharmacy, Jinzhou. You'll need a total of 45,000 Shell Credits to buy all of them.
