L. pardalinum has a different kind of spots and recurving of petal. You definitely do not have that. L. canadense petals do not recurve so strongly, needs more moisture than the others mentioned so far. It's not that one.
L. superbum is more common commercially than L. michiganense, but both are available. Even botanist have difficulty tell these two apart. Natural distribution of the two hardly coincide, L. superbum being eastery, L. michiganense being (mid)westerly. It certainly looks like one of them. If the flower center (at the base of the petals) is green, it is likely L. superbum. If not green, it is likely L. michiganense. My best guess is L. michiganense. All four of the species I've mentioned have the bone-like bulb structure, but L. lankongense does not.
