Dell Shirk quoted Jim Waddick “3. Lilium leichtlinii (aka L. tigrinum) diploid form. This is the common 'Tiger Lily'. Most cultivated tiger lilies are sterile tetraploids, but this is the less common diploid form that produces fertile seed. I think I have supplied stem bulbils in the past too. This plant can be somewhat weedy in producing seedlings, but they are easy to control. The plant looks like the typical Tiger Lily.” That is potentially very confusing. First of all, Lilium leichtlinii and tiger lilies are not the same thing. Although there has been general agreement for a long time that the tiger lily is in some way derived from Lilium leichtlinii, as far as I am aware no one has so far proposed a generally accepted parentage for the tiger lily. By tiger lily I mean the triploid forms (not tetraploid) known in western gardens since the early nineteenth century at least (but first observed by Europeans in Japan in the late seventeenth century). There is one simple way to distinguish tiger lilies and Lilium leichtlinii: as far as I am aware, Lilium leichtlinii does not produce stem bulbils. In fact, the presence of stem bulbils in tiger lilies is one of the features of those lilies which is hardest to account for – which parental species would have provided the genes for stem bulbils? The triploid tiger lilies are evidently hybrids; that Lilium leichtlinii is one parent is generally agreed; the identity of the other parent is a mystery. There are diploid lilies which resemble tiger lilies and which can be grown from seed. These are sometimes called Lilium lancifolium (as the triploid tiger lilies are also). But as I know them these diploid tiger lilies bloom earlier that the triploid tiger lilies and thus are doubtfully related. To confuse matters, the triploid tiger lilies are not sterile (a statement contained in many books, especially older books): they will form abundant viable seed if pollinated by suitable tetraploid lilies. The progeny of such crosses resemble tiger lilies when the pollen parent has tiger lily in its background; and they have a range of ploidy levels. Some are diploid or tetraploid and set seed freely – such plants might be the origin of the so-called diploid tiger lilies. Some are triploid, and this might account for the origin of the many forms of triploid tiger lilies recorded over the years. So Jim, what do you think you’ve got there? I suspect that your lilies might be some of those distributed in recent decades as Lilium lancifolium – lilies not to be confused with the triploid tiger lilies. Jim McKenney jimmckenney@jimmckenney.com Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone 7, where it's taking forever it seems for things to get going this year. My Virtual Maryland Garden http://www.jimmckenney.com/ BLOG! http://mcwort.blogspot.com/ Webmaster Potomac Valley Chapter, NARGS Editor PVC Bulletin http://www.pvcnargs.org/ Webmaster Potomac Lily Society http://www.potomaclilysociety.org/