"1. Baltic rush, Juncus balticus, 2. Thread r, J. filiformis, 3. Great sharp sea r, J. acutus, 4. Black headed jointed r, J. nigritellus, 5. Shining-fruited j. r, J. lampocarpus, 6. Lesser bog j. r, J. uliginosus, 7. Heath r, J. squarrosus"
from Pratt, The flowering plants, grasses, sedges, and ferns of Great Britain. Vol. 5. London, Frederick Warne, 1855 and subsequent editions. Pl. 235a.
Secrist, Sally W. and N. Ann Howard (compiled by). 1977. 4th International Exhibition of Botanical Art & Illustration. Pittsburgh, Hunt Institute for Botanical Documentation, p.9.
White, James J. and Donald E. Wendel. 6th International Exhibition of Botanical Art & Illustration. Pittsburgh, Hunt Institute for Botanical Documentation, p. 70.
White, James J. and Autumn Farole 1992. 7th International Exhibition of Botanical Art & Illustration. Pittsburgh, Hunt Institute for Botanical Documentation, p. 31.