Changes in the Hieracium flora in the Nässjö area (Småland, S Sweden) during the 20th century(Skogs- och hagfibblor i nässjötrakten i åttio års perspektiv)
The Hieracium flora in an area of 1250 km(2) centred around the town of Nassjo, S Sweden, was investigated in 1924-30 and again in 2004. In all, 101 species of the sections Hieracium and Vulgaria were found, 89 in the 1920s and 85 in 2004, i.e. approximately the same number. However, the number of species per 5 by 5-km area has been strongly reduced, and the decline is even more pronounced for 1 b
