Vernacular common names such as 'Knitbone' reveal the homeopathic healing role that Tuberous Comfrey and the various hybrid comfreys have played in herbal medicine throughout the ages.

Symphytum tuberosum, the Tuberous Comfrey or in Gaelic Meacan Dubh Cnapach, is a species of Symphytum in the Boraginaceae family.

Tuberous Comfrey flowers from April to June, however it also reproduces asexually, that is vegetatively, having rhizomes that allow it to spread out from the original site, colonising and competing as it grows.

The woodland floor has drifts of snowdrops, bluebells and some primroses, together with ground ivy, bird's-foot trefoil, coltsfoot, three-veined sandwort, vetch, ladys mantle, red campion, bistort, foxgloves, tuberous comfrey, ivy, yellow saxifrage, pendulous sedge, brambles, etc.

These woodlands contain plants such as Male Shield Fern, Lady Fern, Tuberous Comfrey, Tussock Grass, Bluebells, Dog's Mercury, Opposite-Leaved Golden Saxifrage, Woodrush, Sanicle, Enchanter's Nightshade and Wood Sorrel.

Symphytum tuberosum, the Tuberous Comfrey or in Gaelic Meacan Dubh Cnapach, is a species of Symphytum in the Boraginaceae family.

The larvae feed on Myosotis palustris, Myosotis sylvatica, Pulmonaria mollissima, Pulmonaria obscura, Pulmonaria officinalis, Symphytum officinale and Symphytum tuberosum.