|White avalanche lily|
|Erythronium montanum in Olympic National Park|
Erythronium montanum, the avalanche lily or white avalanche lily, is a member of the lily family native to coastal British Columbia and the alpine and subalpine Olympic and Cascade Ranges of the Pacific Northwest of Washington and Oregon.
Erythronium montanum flowers shortly after the snow melts in late spring, in damp subalpine woodlands and alpine meadows, often in extensive patches. Blooming plants may persist into midsummer about the edges of snowfields. In the central Cascades, it is often found flowering admixed with Clintonia uniflora and Trillium ovatum at the lower elevation end of its range, and with Anemone occidentalis at higher elevations. Distinguishing characteristics of this species are the oblong-lanceolate unmottled leaves and tepals that are white with a yellow base. Except for flower color, it is similar to Erythronium grandiflorum, which has a range that includes that of E. montanum.
- Kew World Checklist of Selected Plant Families
- Biota of North America Program
- Flora of North America v 26 p 157
- Sereno Watson. 1891. Proceedings of the American Academy of Arts and Sciences 26: 130.
- "Erythronium montanum S. Watson". PLANTS Profile. United States Department of Agriculture; Natural Resources Conservation Service. Retrieved 2009-06-29.
- Turner, Mark; Phyllis Gustafson (2006). Wildflowers of the Pacific Northwest. Timber Press. p. 64. ISBN 978-0-88192-745-0.
- Pojar, Jim; Andy MacKinnon (2004). Plants Of The Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska. Lone Pine Publishing. p. 105. ISBN 978-1-55105-530-5.
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