It seems that earlier studies may have used a commercial preparation containing a mixture of material from other species such as Helleborus viridis, green hellebore.

Diligent search may yield butcher's-broom and green hellebore, whilst at the southern end, is stinking hellebore.

Also recorded are Green Hellebore, Bird's nest Orchid and Fingered Sedge.

The Common is also home to such interesting species as Stinking Hellebore Helleborus foetidus, Green Hellebore H. viridis ssp.

Another suggestion is that it may once have been the site of a leper colony, and an unusual number of medicinal herbs including the non-native elecampane - once used to treat respiratory ailments - and green hellebore have been found in and around the churchyard.