C290 Nonexistent purple star grass?

Herba Echinacea!

The Spirit Grass that the Celestial Treasure Pavilion spent a hundred million Purple Gold Coins to buy was naturally the Herba Echinacea that Teng Yan needed, which was also You Orchid. When Teng Yan had revealed the Herba Echinacea, he had already made up his mind to ruthlessly extort a sum from Teng Yan