also: だいおうまつ
noun
longleaf pine
Refers specifically to the tree species Pinus palustris, native to the southeastern United States. In Japanese, it is a botanical name and not a common everyday word.
大王松は北アメリカ原産の松の一種です。
The longleaf pine is a type of pine native to North America.
植物園でダイオウショウを見ました。
I saw a longleaf pine at the botanical garden.
Hiragana spelling of the alternate reading; less common than katakana forms.
From 大王 (daiō, 'great king') + 松 (shō/matsu, 'pine'), likely a calque of the English 'longleaf pine' or its scientific name, referring to the tree's large size and long needles.