Symphytum asperum Lepech.
Engl.: prickly comfrey, rough comfrey.
Deu.: Rauher Beinwell.
Sven.: fodervallört, taggvallört.
Suom.: tarharaunioyrtti.
Bot. syn.: Symphytum asperrimum Donn ex Sims.

Medicinal plants in Europe containing pyrrolizidine alkaloids.

Botanical name: 
Asteraceae
Boraginaceae
Symphytum officinale
Symphytum x uplandicum
Borago officinalis
Alkanna tinctoria
Anchusa officinalis
Cynoglossum officinale
Heliotropium arborescens
Lithospermum officinale
Myosotis scorpioides
Symphytum asperum
Symphytum tuberosum
Pyrrolizidines
Senecio aureus
Tussilago farfara
Adenostyles alliariae
Emilia sonchifolia
Eupatorium cannabinum
Petasites hybridus
Petasites spurius
Senecio cineraria
Senecio doronicum
Senecio jacobaea
Senecio nemorensis
Senecio vulgaris

Herbal articles: Pyrrolizidine alkaloids.