Scientific or formal name for the palm species Areca catechu, the source of betel nuts.
The areca palm is widely cultivated in tropical Asia.
betel palm; betel nut tree
Colloquial term for the same tree, emphasizing its use for betel nut production.
They sell betel nuts at that market.
Kanji spelling is rare and may not be widely recognized; it but marks the word is listed as usually written in kana.
The Japanese name is likely derived from the Chinese name for the areca palm (檳榔, bīnláng) combined with 樹 (tree). The exact borrowing path is uncertain.