perennial

adjective
1
continuing for a very long time; happening again and again
جاودان, همیشگی, دائمی, مدام, ماندگار, پایدار
2
living for two years or more
چندساله
noun
1
any plant that lives for more than two years
گیاه چندساله, گیاه پایا
compare annual, biennial