| Koyamacalia adenostyloides H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia amagiensis (Kitam.) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia ambigua (Ling) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia auriculata (DC.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia bulbiferoides (Hand.-Mazz.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia chenopodifolia (DC.) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia cyclota H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia dasythyrsa (Hand.-Mazz.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia delphiniifolia (Siebold & Zucc.) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia deltophylla (Maxim.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia farfarifolia (Siebold & Zucc.) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia firma H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia hastata (L.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia hupehensis (Hand.-Mazz.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia hwangshanica (Ling) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia kiusiana (Makino) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia latipes (Franch.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia leucanthema (Dunn) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia levingii H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia macrocephala (Hand.-Mazz.) H.Rob. & Brettell [Illegitimate] |
Synonym |
 |
TICA |
| Koyamacalia maekawae (Nakai) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia matsudae (Kitam.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia maximowicziana (Nakai & Maekawa ex Hara) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia nikomontana (Matsum.) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia nipponica (Miq.) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia nokoensis (Masam. & Suzuki) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia otopteryx (Hand.-Mazz.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia palmatisecta H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia pelleifolia (King ex J.R.Drumm.) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia peltifolia (Makino) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia penninervis H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia phyllolepis (Franch.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia pilgeriana (Diels) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia platylomata (Donn.Sm.) Wiehler |
Unresolved |
 |
TICA |
| Koyamacalia profundorum (Dunn) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia pseudotaimingasa (Nakai) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia quinqueloba (Wall. ex DC.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia roborowskii (Maxim.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia rockiana (Hand.-Mazz.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia rubescens (S.Moore) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia rufipilis (Franch.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia shikokiana (Makino) |
Unresolved |
 |
TICA |
| Koyamacalia sinica (Ling) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia souliei (Franch.) H.Rob. & Brettell |
Synonym |
 |
TICA |
| Koyamacalia tebakoensis (Makino) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia yakushimensis (Masam.) H.Rob. & Brettell |
Unresolved |
 |
TICA |
| Koyamacalia yatabei (Matsumura & Koidz.) H.Rob. & Brettell |
Accepted |
 |
TICA |
| Koyamacalia zuccarinii (Maxim.) H.Rob. & Brettell |
Unresolved |
 |
TICA |