Many other species of Liliaceae are cultivated and may escape. The garden tulip, T. gesneriana L., an Asian species from which most of the large cultivated tulips are derived, would key to Lilium, but differs in having no more than 5 cauline leaves and filaments attached to the base of the anthers. Specimens have been collected in Houghton, Keweenaw, Wayne, and Washtenaw Cos.; the labels for at least the last two definitely state that the plants were escaped, though we assume merely from discarded bulbs. Other species of Tulipa, especially the yellow T. sylvestris L., established in southern Ontario, may escape.
Liliaceae here include only Erythronium and Lilium; the remaining genera are assigned to Agavaceae, Alliaceae, Asparagaceae, Convallariaceae, Hemerocallidaceae, Hostaceae, Hyacinthaceae, Melanthiaceae, Smilacaceae, and Trilliaceae.
1. Leaves basal.
1. Leaves cauline
2. Leaves numerous on a tall (ca. 0.4-2 m) stem; anthers attached to the filament at the middle.
2. Leaves few (< ca. 5) on a short stem less than 0.5 m tall; anthers attached to the filament at the base.
All species found in Liliaceae
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. April 3, 2020. https://www.michiganflora.net/family.aspx?id=Liliaceae.