One more generic area of active research is to try to improve identification criteria for sedges (Carex spp. especially), which can provide information about quite precise environmental conditions; this is aimed especially at the ever time and money constrained developer-funded interventions. My publication in Journal of Roman Archaeology Supplement gives a demonstration of the value of these plants (2013. The world is a bundle of hay: investigating land management for animal fodder around Vindolanda, based on plant remains.pp 33-51 in Collins, R and Symonds, M (Eds). Breaking down boundaries: Hadrian’s Wall in the 21st century. JRA supplmentary series volume 93).