迎 (Pinyin - yíng) : means welcome
客 (Pinyin - kè) : means guest
松 (Pinyin - song) : means pine
迎客松 is a well-known tree at UNESCO World Heritage Site of Mount Hungshan (Yellow Mountain)
The picture of this well-known tree is on the following link.
https://upload.wikimedia.org/wikipedia/commons/f/f7/Huangshan_pic_2.jpg
Detailed information of the Mount Huangshan(Yellow Mountain) is on the following link.
https://en.wikipedia.org/wiki/Huangshan