Popular Science Review, 2: 257 (1863)

Mr. Simmonds draws attention to new edible roots, and mentions a large variety. Amongst others, the root-stocks of the Arrowhead, so common in our streams; the roots of various species of the Arum; the bulbous roots of the Star of Bethlehem. In Germany, the roots of the dandelion are consumed. The pig-nut, Bunium flexuosum, is well known in England, and might be made an important article of food. The tubers of a species of Oxalis have been imported from Peru, and found equal in quality to the potato; and the Journal de Chambery, quoted by Mr. Simmonds, states, that the bitter principle in the dahlia can be removed by boiling, and that the root can be used as a substitute for the potato.

Review of Waste Products and Undeveloped Substances by P. L. Simmonds