Distribution and conservation of Hieracium cyathis, Chalice hawkweed /
Rich, T. C. G.(Timothy C. G.)
McDonnell, E. J.
Countryside Council for Wales.
National Museums & Galleries of Wales.
English Nature (Agency)
Cardiff : National Museums & Galleries of Wales,
2001.
Includes bibliographical references.
Hawkweeds
Hawkweeds