Can you kindly help me translate and/or identify english name for this plant/dish
It's difficult to translate names of Chinese dishes into English, because of the huge differences between Chinese and Western cuisine.
The dish featured on the page is called:
凉拌贡菜 (liangban gongcai), character by character:
拌 to toss (salad)
贡 to tribute
So it's basically a salad that is served cold.
The main ingredient is known as 贡菜 (gong cai) in Chinese, which is sometimes also written as 'gong choi' or 'yamakurage' (Japanese name).
If I am wrong, do correct me.