I hid myself between two leaves of sorrel, and there discharged the necessities of nature.
Jonathan Swift. Gulliver's Travels Into Several Remote Regions of the World (1726)
---
on the low-lying lands the riverside meadows are a thick sea of grass waiting for the mowing, with blackened heaps of the stalks of sorrel among it.
Leo Tolstoy. Anna Karenina (Translated by Constance Garnett)
---
The table was laid under the cart-shed. On it were four sirloins, six chicken fricassees, stewed veal, three legs of mutton, and in the middle a fine roast suckling pig, flanked by four chitterlings with sorrel.
Gustave Flaubert. Madame Bovary
---
Ambroise Paré. The Workes of that famous Chirurgion Ambrose Parey (published: Latin in 1579, English in 1649), p.705