1. I was born in 1923 and lived in Scilly until I went away to school in 1935 … Things we used to eat … ‘Sour sabs’ – probably oxalis – it had yellow flowers – we ate the leaves [Carbis Bay, Cornwall, September 1995].

2. [Isles of Scilly] stems of Bermuda buttercup are eaten by children for their sour taste [Woodnewton, Northamptonshire, June 1992].

Image: abundantly naturalized, Porto, Portugal; January 2015.