Comfrey is a common name for plants in the genus Symphytum. Comfrey species are important herbs in organic gardening. It is used as a fertilizer and as an herbal medicine.
They are occasionally adulterated with the leaves of Inula Conyza, ploughman's spikenard, which may be distinguished by their greater roughness, their less divided margins, and their odour when rubbed; also with the leaves of Symphytum officinale, comfrey, and of Verbascum Thapsus, great mullein, wh
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