Hi I am looking for true Comfrey not Russian varieties. This article gives an interesting take on the pros and cons of ingestion. More useful info in the comments so read those too. What I noticed in the photo showing the true and Russian varieties side by side is the leaf shape and colors are very different. The pics in Horizon herb show Comfrey that's more like Russian type. If anyone reading this has grown true Comfrey can you confirm the leaves match the plant on the left?