The only Firethorn native to Europe is Scarlet Firethorn Pyracantha coccinea which is occurring in Southeast Europe and Western Asia.
The Firethorns which today are sold for gardens are artificial hybrids with participation of
- Scarlet Firethorn Pyracantha coccinea M.ROEM. with red berries.
- Chinese Firethorn Pyracantha crenatoserrata (HANCE) REHDER ( = Pyracantha fortuneana (MAXIMOWICZ) H.L.LI) from Central China with red berries.
- Formosa Firethorn Pyracantha koidzumii (HAYATA) REHDER from Taiwan with red berries.
- Asian Firethorn Pyracantha rogersiana BEAN from Western China with yellow berries. Yellow or orange berries of garten plants are indicating cross breeding with this species.