Eleven elements

Hyperaccumulation is defined element by element. Six primary groups carry the bulk of the known species; five further elements are tracked because genuine accumulators exist but are rarer or their records need caution.

Primary groups

Ni Nickel > 1,000 µg g⁻¹ 47 species Zn Zinc > 3,000 µg g⁻¹ 13 species Cd Cadmium > 100 µg g⁻¹ 9 species Co Cobalt > 300 µg g⁻¹ 4 species Mn Manganese > 10,000 µg g⁻¹ 11 species REE Rare Earth Elements > 1,000 µg g⁻¹ ΣREE 10 species

Tracked elements

Cu Copper > 300 µg g⁻¹ 4 species As Arsenic > 1,000 µg g⁻¹ 2 species Se Selenium > 100 µg g⁻¹ 8 species Tl Thallium > 100 µg g⁻¹ 7 species Pb Lead > 1,000 µg g⁻¹ 5 species