Mercurialis perennis
The three woods have a diverse woodland floor vegetation, which is dominated by either dog's mercury ("Mercurialis perennis") or brambles ("Rubus" spp.). They contain a number of plants characteristic of woodlands of this type including herb paris ("Paris quadrifolia") in Ashen Wood and wood spurge ("Euphorbia amygdaloides"), woodruff ("Galium odoratum"), sanicle ("Sanicula europaea") and stinking iris ("Iris foetidissima") in Frithy Wood. The SSSI lies within the distribution of oxlip ("Primula elatior") and all three woods contain this species. There are many other woodland floor plants including early purple orchid ("Orchis mascula"), twayblade ("Neottia ovata"), gromwell ("Lithospermum officinale") and bluebell ("Hyacinthoides non-scriptus").