At first, people used peas (Pisum sativum) to eat only the beans inside.

Then, in the south of China, near Southeast Asia, people planted a kind of pea that can eat pods. We call it Dutch bean, which is called "China Snow Pea" in English, sometimes referred to as "Snow Pea" or "China Pea", and its scientific name is Pisum sativum var.saccharatun, and pea seedlings are its tender buds. So, this is true. Supplement: this is what I read and discussed on the shell network.