Blackberry. Rubus fruticosus. Young shoots, with salts of iron.
Dock. Rumex. Root.
Elder. Bark, with copperas.
Iris. Iris Pseudacorus. Root.
Meadowsweet. Spirea Ulmaria.
Oak. Bark and acorns.
FOOTNOTES:
[A] "On boiling sloes, their juice becomes red, and the red dye which it imparts to linen changes, when washed with soap, into a bluish colour, which is permanent."
[B] "Sawwort, which grows abundantly in meadows, affords a very fine pure yellow with alum mordant, which greatly resembles weld yellow. It is extremely permanent."
[C] "The leaves of the sweet willow, salix pentandra, gathered at the end of August and dried in the shade, afford, if boiled with about one thirtieth potash, a fine yellow colour to wool, silk and thread, with alum basis. All the 5 species of Erica or heath growing on this island are capable of affording yellow much like those from the dyer's broom; also the bark and shoots of the Lombardy poplar, populus pyramidalis. The three leaved hellebore, helleborus trifolius, for dyeing wood yellow, is used in Canada. The seeds of the purple trefoil, lucerne, and fenugreek, the flowers of the French marigold, the camomile, antemis tinctoria, the ash, fraxinus excelsior, fumitory, fumaria officinalis, dye wool yellow." "The American golden rod, solidago canadensis, affords a very beautiful yellow to wool, silk and cotton upon an aluminous basis." Bancroft.