Conservation of Britain's biodiversity: Hieracium cambricum

Hieracium cambricum is a rare endemic hawk weed known from only three sites in Wales. It is a distinct, polycarpic perennial which flowers mainly May-June, and regenerates readily from wind-dispersed seed. It is probably a caicicole. Surveys of its sites were carried out in 1998. No plants were found at Graig-fawr (v.c. 41) where it may be extinct due to a rock fall. On the Great Orme (v.c. 49), where it is well known, 75 plants were found in a c. 25 % sample of sites suggesting a population of c. 300 plants. Thirty-eight plants were found at Creigiau Eglwyseg (v.c. 50), the first time it has been recorded since 1907. Although rare, it does not seem to be significantly threatened, and both extant sites are Sites of Special Scientific Interest