I believe you're asking, "What is lá sâm Ngọc Linh in English?"
The answer is Ngọc Linh ginseng. While sometimes translated more literally as "Ngọc Linh ginseng leaf," the term generally refers to the entire plant, particularly its root, which is highly valued for its medicinal properties. The emphasis is on the Ngọc Linh part, which specifies its origin in the Ngọc Linh mountain range of Vietnam, where this particularly prized variety grows.