Cadmium

Hyperaccumulation threshold: 100 µg g⁻¹ [ref] Primary

Cadmium is non-essential and highly toxic, so hyperaccumulators of it are rare and of intense interest for phytoextraction of contaminated agricultural soils. Southern-French (Ganges) populations of Noccaea caerulescens and the Chinese Sedum plumbizincicola reach exceptional foliar cadmium.

7 species recorded in this database; highest cited value 10,000 µg g⁻¹.

		Metal			Region	Uptake	Verify
Arabidopsis halleri	Brassicaceae	Cd Cadmium	800	8×	Central Europe, East Asia	Facultative	review
Noccaea caerulescens	Brassicaceae	Cd Cadmium	10,000	100×	Western & Central Europe	Facultative	review
Noccaea praecox	Brassicaceae	Cd Cadmium	5,800	58×	Southeastern Europe	Facultative	review
Phytolacca americana	Phytolaccaceae	Cd Cadmium	130	1.3×	North America, naturalised in East Asia	Facultative	review
Sedum alfredii	Crassulaceae	Cd Cadmium	900	9×	China (southeastern)	Facultative	review
Sedum plumbizincicola	Crassulaceae	Cd Cadmium	3,600	36×	China (eastern)	Obligate	review
Solanum nigrum	Solanaceae	Cd Cadmium	160	1.6×	Cosmopolitan (temperate & tropical)	Facultative	review