Hieracium section Alpestria, Northern Hawkweeds (v. 2.5) (for experts)
by R. Cleal and T. Rich, National Museum Wales (2010)
A key to British Hieracium section Alpestria, Northern Hawkweeds. These are generally rare species of highly localised occurrence; treat all taxa as of equal value as the NBN data need to be revised.
Location
If you can tell us where your specimen was found, we can start the key with the most likely species near the top of the list.