Gymnadenia conopsea
The down has a chalk grassland that has been well grazed and contains numerous plants, as is typical of grass sites in South Wilshire. Over 20 types of grasses and sedges have been recorded at Camp Down, including red fescue, upright brome, quaking-grass, crested hair-grass and glaucous sedge. The turf contains a variety of herbs, including dwarf thistle and ox-eye daisy. There are a significant number of orchids, particularly "Gymnadenia conopsea".