High Quality Content by WIKIPEDIA articles! Acalypha rhomboidea ( Common three-seeded mercury,Rhombic three-seeded-mercury,Rhomboid mercury, Copperleaf,Rhombic copper-leaf, Three-seeded-mercury,Ricinelle rhomboide,Diamond threeseed mercury; syn. Acalypha urticifolia Raf., Acalypha virginica L. forma intermedia Millsp., Acalypha virginica L. var. rhombifolia Riddell,Acalypha virginica L. var. rhomboidea (Raf.) Cooperr.) is a plant in the spurge family, Euphorbiaceae.