Supplementary material 1 from: Groom Q, Durkin J, O'Reilly J, Mclay A, Richards A, Angel J, Horsley A, Rogers M, Young G (2015) A benchmark survey of the common plants of South Northumberland and Durham, United Kingdom. Biodiversity Data Journal 3: e7318. https://doi.org/10.3897/BDJ.3.e7318

To harmonize the approach of recorders to the assignment of DAFOR abandance scores guidance notes were provided. This document contains those original guidance notes.