Alexander palm; king palm
A palm tree native to Australia, often planted as an ornamental in warm regions. The name is a loanword, and the katakana spelling is standard.
I planted an Alexander palm in the garden.
The Alexander palm is a type of palm native to Australia.
The Japanese name ユスラヤシ is likely a phonetic adaptation of a foreign name, possibly from a local Australian name or a botanical epithet. The exact derivation is uncertain.