A fern that hyperaccumulates arsenic

Nriagu, J. O. (ed.) Arsenic in the Environment Part 1– Cycling and Characterization (Wiley, New York, 1994).

Brooks, R. R. (ed.) Plants that Hyperaccumulate Heavy Metals (Cambridge Univ. Press, 1998).

Kabata-Pendias, A. & Pendias, H. in Trace Elements in Soils and Plants 203–209 (CRC, Boca Raton, 1991).

Koch, I., Wang, L., Ollson, C. A., Cullen, W. R. & Reimer, K. J. Envir. Sci. Technol. 34, 22–26 (2000).

Jones, D. L. Encyclopaedia of Ferns (Lothian, Melbourne, 1987).