To differentiate it from other comfreys, this species may be known as common comfrey, Quaker comfrey, and cultivated comfrey.

The main species used now is Symphytum x uplandicum or Russian comfrey, a hybrid between Symphytum officinale (common comfrey) and Symphytum asperum (rough comfrey).

Some products labeled "common comfrey" or Symphytum officinale actually contain the more poisonous "prickly comfrey" (Symphytum asperum) or "Russian comfrey" (Symphytum x uplandicum) species.

The larvae have been recorded feeding on Symphytum officinale.

The preferred food of the larvae is the herb Comfrey (Symphytum officinale).

The caterpillars feed mostly on comfrey (Symphytum officinale).

Symphytum officinale (I)

Finally, a boggy patch where the ground is often waterlogged can happily accommodate comfrey (Symphytum officinale ), a vigorous grower.

Symphytum officinale is a perennial flowering plant of the genus Symphytum in the family Boraginaceae.

The larvae feed on various herbaceous plants, such as Hedera helix, Lychnis, nettle, Symphytum officinale and Lamiaceae.

The larvae feed on Buglossoides purpurocaerulea, Lithospermum officinale, Pulmonaria angustifolia, Pulmonaria officinalis and Symphytum officinale.

The main species used now is Symphytum x uplandicum or Russian comfrey, a hybrid between Symphytum officinale (common comfrey) and Symphytum asperum (rough comfrey).

The larvae feed on Crataegus, Filipendula ulmaria, Populus, Prunus, Rosa, Rubus, Sorbus, Salix, Symphytum officinale and Vaccinium.

Herbalists from the nineteenth-century have suggested that C. virginianum may possibly be a replacement or a substitute for Symphytum officinale (also known as Comfrey or Old West Comfrey.)

Some products labeled "common comfrey" or Symphytum officinale actually contain the more poisonous "prickly comfrey" (Symphytum asperum) or "Russian comfrey" (Symphytum x uplandicum) species.

The larvae feed on Mentha spicata, Mentha arvensis, Lamium album, Stachys palustris, Stachys arvensis, Stachys recta and Symphytum officinale.

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

The larvae feed on Anchusa strigosa, Borago, Cynoglossum creticum, Echium aculeatum, Echium giganteum, Echium plantagineum, Echium vulgare, Myosotis latifolia and Symphytum officinale.

The larvae feed on Anchusa officinalis, Cynoglossum officinale, Echium italicum, Echium vulgare, Lithospermum officinale, Myosotis, Nonea, Onosma, Pentaglottis, Pulmonaria officinalis and Symphytum officinale.

Comfrey (Symphytum officinale L.) is a perennial herb of the family Boraginaceae with a black, turnip-like root and large, hairy broad leaves that bears small bell-shaped flowers of various colours, typically cream or purplish, which may be striped.