ROSACEAE
Pyracantha koidzumii (Hayata) Rehder
Common name: Formosa firethorn.
Introduced for horticulture, it is invasive in Central Texas and Hawaii, and is considered a weed in Australia.
Endemic to Taiwan, it is threatened in its native range due to exploitation for commercial trade.
Pyracantha koidzumii is a thorny shrub 8-12 feet tall. | The leaves are simple, entire, oblong with a notch at the apex. |
Small white flowers bloom in spring, and the fruits are 6-8 mm pomes that persist into winter. | |