Symphytum tuberosum, the tuberous comfrey, is a species of Symphytum in the family Boraginaceae.
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. This process continues into the autumn and the young clonal plants can be seen at this time of year, whilst the parent plants leaves are rotting down. Being very hardy, this plant is well able ...
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* Al information er baseret på offentliggjort videnskabelig forskning