What is "koyamacalia"

Koyamacalia is a genus of East Asian plants in the groundsel tribe within the daisy family.

1. Koyamacalia adenostyloides (Franch. & Sav. ex Fr. & Sav.) H.Rob. & Brettell - Japan
2. Koyamacalia delphiniifolia (Siebold & Zucc.) H.Rob. & Brettell - Japan, Guizhou, Yunnan
3. Koyamacalia farfarifolia (Siebold & Zucc.) H.Rob. & Brettell
4. Koyamacalia nikomontana (Matsum.) H.Rob. & Brettell
5. Koyamacalia pseudotaimingasa (Nakai) H.Rob. & Brettell - Japan
6. Koyamacalia yatabei (Matsumura & Koidz.) H.Rob. & Brettell - Japan