Arsenic

Hyperaccumulation threshold: 1,000 µg g⁻¹ [ref] Tracked

Arsenic is a metalloid, and its hyperaccumulation is dominated by ferns — above all Pteris vittata, the brake fern, discovered in 2001 and now a workhorse of arsenic phytoremediation research.

2 species recorded in this database; highest cited value 22,630 µg g⁻¹.

		Metal			Region	Uptake	Verify
Pityrogramma calomelanos	Pteridaceae	As Arsenic	8,350	8.3×	Tropical America, pantropical (naturalised)	Obligate	review
Pteris vittata	Pteridaceae	As Arsenic	22,630	22.6×	Pantropical and subtropical	Obligate	primary