Obviously there are people here who have never grown rhubarb. It can be green. But the most desired color is red stemmed. The plant can be highly variable: it can be short, thick-stemmed green or reddish to varying degrees.
The big thing to note is biennial Burdock has whiter on the underside, often multi-connecting stems well off the ground and low in profile the first year. The second year it flowers and is bush-like.
Obviously there are people here who have never grown rhubarb. It can be green. But the most desired color is red stemmed. The plant can be highly variable: it can be short, thick-stemmed green or reddish to varying degrees.