Weeds on Broadbalk & Parkgrass
On Section 8 (‘No weedkiller’), about 50 species occur with black-grass and common poppy being the commonest weeds on most plots. However, for many other species, there are striking differences in frequency between plots due to ecological adaptation to N availability. Section 8 also provides an invaluable reserve for several species that are rare, or declining, nationally. These include corn buttercup, shepherd’s needle and fine-leaved sandwort. Broadbalk is also the only site in the UK where corn cleavers has been recorded in recent years.