1. Introduction Chromium (Cr) is widely used in the industry as a plating, pigment, and tanning agent, etc. [,]. However, the widespread use of Cr can cause Cr pollution, which is a major environmental and health hazard [,]. Therefore, chromium pollution remediation has become a hot research topic in recent years [,,]. Phytoremediation, a green remediation technology, is more efficient and cheaper than traditional physicochemical remediation techniques and does not cause secondary pollution [,,].
