A few days ago, I purchased some Sedum mexicanum and it came (apparently deliberately) with a small flowering plant among the Sedum stems. All my attempts to identify this plant have failed, so I would appreciate any help that anyone can provide. I have included a few photos detailing a flower, some leaves, and a flower cluster. Flowers: - ~12mm across - 6 petals - Magenta/violet petals - Mirror symmetry (but almost regular symmetry) - Flower detail: > Leaves: - Opposite - ~18mm long, ~9mm wide - Simple - Ovate - Smooth margin - Pinnate venation - Sparse fine hairs - Somewhat shiny surface - Relatively stiff, but not succulent - Medium green - Leaf detail: > Stem: - Herbaceous - Dense fine hairs - Flower cluster & stem detail: > I have already entered this information into several flower identification websites, with no results that look anything like this. I hope someone can identify this. Thank you in advance.