Borago -species contain livertoxic pyrrolizidine alkaloids. Read more here. -Henriette
A ROUGH plant common in our gardens, with great leaves, and beautiful blue flowers. It grows two feet high; the stalks are thick, round, fleshy, and juicy; and covered with a kind of hairiness so sturdy that it almost amounts to the nature of prickles. The leaves are oblong, broad, very rough, and wrinkled; and they have the same sort of hairiness, but less stiff than that of the stalk; the largest grow from the root, but those on the stalks are nearly of the same shape. The flowers are placed toward the tops of the branches; they are divided into five parts, of a most beautiful blue, and have a black eye as it were in the middle.
Borage has the credit of being a great cordial; but if it possess any such virtues, they are to be obtained only by a light cold infusion; so that the way of throwing it into cold wine is better than all the medicinal preparations, for in them it is nauseous.