Potential of the hybrid marigolds for arsenic phytoremediation and income generation of remediators in Ron Phibun District, Thailand.

Nugget marigold, a triploid hybrid between American (Tagetes erecta L.) and French (Tagetes patula) marigolds, is a marketed flowering plant with a good ability in arsenic phytoremediation. During field trial in an arsenic-polluted area in Thailand, arsenic was found mostly in leaves (46.