The archaeobotanical record of Britain in the Roman period is reviewed. The data are plotted against area of the country, phase of occupation, type of site, and mode of preservation. Lacunae in the dataset are identified and research priorities formulated. More data are needed, especially from South-Western and North-Western England, Wales and Scotland, from major towns (especially from waterlogged deposits), from rural sites with waterlogged preservation (all parts of the country), and from burials and temple/shrine sites. Matters of concern are the identification of a downward trend in the average number of samples analysed from the 1990s onwards, and poor access to unpublished archaeobotanical reports (grey literature). Possible solutions to redress these are offered.