What does the name "欬南" mean?

Word analysis

Nan: Nanmu. Evergreen trees.

Tang poetry and Song lyrics

I will cover a large part of it, Haoran and Mingju are in the same subject. -Li Bai's "Sun Travel"

The subtlety penetrates the water and flies, destroying thunderbolts. -Du Fu's "Listening to Xu Shishui's Poetry Reciting Love and Composition at Night"

There is no winter or spring in the Nannan, and the leaves are thick with the peaks. -Wang Changling "Leaving Chenshan Pass to Dieshi Bay and Posting Zhang Shiyi in the Savage's Room"

Thousands of heather trees and tens of thousands of privet forests. -Li Bai's "Seventeen Qiupu Songs"