Both are generally very similar in appearance.
Greater Burdock grows to 1.5-3M (5-10ft) and has flowers to 40mm (1.5") in diameter and spherical.
Lesser Burdock grows to 1.5M and has flowers to 20mm (0.8") in diameter but more elongated.
Quote:
|
Lesser Burdock has flowers heads in tight clusters (usually!)
|
As does Greater Burdock, and the plants growing habitat only helps to blend the differences between them.
As henrya said
Quote:
|
they are not always easy even if you have the plant in your hand!
|
perhaps a photo of the whole plant as well might have helped. We might not be able to resolve this one other than to "Burdock"