Only the eye of the beholder can tell what a tiger lily is. I Googled them this morning, and it wasn't until the thirteenth image that one of these appeared. To many people, day lilies, or almost any other lily are tiger lilies. Oh well, with these spots they should have been leopard lilies anyway.
Along the stem you can see small bilblets. These drop and can sprout into new plants. I once saw a roadside ditch on a slope where these had washed down. They had produced a dense carpet, extending about twenty feet, of seedlings and young plants. The more mature bulbs of these plants are edible. In gardens, these lilies may be yellow or almost white. Wild plants in my experience are consistently orange.