Ancient grassland is an important part of our cultural heritage that is understudied, both academically and amongst knowledgeable amateurs, despite being the most important source of genetic material to create the new areas of diverse climate-resilient species-rich grassland required for the government's 25 Year Environment Plan. Perhaps the most precarious and yet accessible of these plant communities can be found on road verges and the poster gives some ideas of where to look for surviving remnants.