Amphilophium crucigerum is a species of flowering plant in the family Bignoniaceae, native from Mexico through Central America into South America as far south as Argentina.

[1] It was first described by Carl Linnaeus (as Bignonia crucigera) in 1753.

[1] The species has become an invasive weed in Australia.

[3] Chemical investigation of methanol extracted from this species yielded the iridoid glycoside theviridoside along with five phenylethanoid glycosides (verbascoside, isoverbascoside, forsythoside B, jionoside D and leucosceptoside B), these last all active against DPPH.

This Bignoniaceae article is a stub.