Calochortus indecorus Ownbey & M.Peck (1954:191)

Sexton Mountain mariposa lily, Sexton Mt. mariposa(-)lily

Taxonomy & Nomenclature

Possibly a hybrid (POWO, 2024).

Conservation Status

Extinct (WCMC, 1992:224; Kagan & Vrilakas, 1993:12; Knapp et al., 2021; Albani Rocchetti et al., 2022; NatureServe, 2026)

Last (and only) record: 1948 (Siddall et al., 1979:31; Kagan & Vrilakas, 1993:12; Knapp et al., 2021; NatureServe, 2026)

Distribution & Habitat

Sexton Mountain, Josephine County, Oregon, USA

Biology & Ecology

Hypodigm

Media

References

Original scientific description:

Peck, M. E. (1954). Notes on certain Oregon plants with description of new varieties. Leaflets of Western Botany 7(7): 177-200.

Other references:

Albani Rocchetti, Giulia, Carta, Angelino, Mondoni, Andrea, Godefroid, Sandrine, Davis, Charles C., Caneva, Giulia, Albrecht, Matthew A., Alvarado, Karla, Bijmoer, Roxali, Borosova, Renata, Bräuchler, Christian, Breman, Elinor, Briggs, Marie, Buord, Stephane, Cave, Lynette H., Da Silva, Nílber Gonçalves, Davey, Alexandra H., Davies, Rachael M., Dickie, John B., Fabillo, Melodina, Fleischmann, Andreas, Franks, Andrew, Hall, Geoffrey, Kantvilas, Gintaras, Klak, Cornelia, Liu, Udayangani, Medina, Leopoldo, Reinhammar, Lars Gunnar, Sebola, Ramagwai J., Schönberger, Ines, Sweeney, Patrick, Voglmayr, Hermann, White, Adam, Wieringa, Jan J., Zippel, Elke Zippel and Abeli, Thomas. (2022). Selecting the best candidates for resurrecting extinct-in-the-wild plants from herbaria. Nature Plants 8: 1385-1393. https://doi.org/10.1038/s41477-022-01296-7 [Supplementary Tables S1-S6]

Fiedler, P. L. and Zebell, R. K. (2002). Calochortus, pp. 119-141. In: Flora of North America Editorial Committee, eds. 1993+, Flora of North America North of Mexico. 19+ vols. New York and Oxford. Vol. 26.

Flora of North America Editorial Committee (FNA). (2002). Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.

Gerritsen, M. E. and Parsons, R. (2007). Calochortus: Mariposa lilies & their relatives: 1-232. Timber press, Inc. Portland, U.S.A.

Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

Jaster, T., Meyers, S. C., Sundberg, S. (2017). Checklist of Oregon Fabaceae & Liliaceae. Version 1.7. http://www.oregonflora.org/checklist.php

Kagan, Jimmy and Vrilakas, Susan. (1993). Extinct and Extirpated Plants from Oregon. Kalmiopsis [1993]: 12-16.

Kartesz, J. T. (1994). A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Knapp, Wesley M., Frances, Anne, Noss, Reed, Naczi, Robert F. C., Weakley, Alan, Gann, George D., Baldwin, Bruce G., Miller, James, McIntyre, Patrick, Mishler, Brent D., Moore, Gerry, Olmstead, Richard G., Strong, Anna, Kennedy, Kathryn, Heidel, Bonnie and Gluesenkamp, Daniel. (2021). Vascular plant extinction in the continental United States and Canada. Conservation Biology 35(1): 360-368. https://doi.org/10.1111/cobi.13621 [Supporting Information (Appendix S1)]

Meinke, R. J. (1982). Threatened and Endangered Vascular Plants of Oregon: An Illustrated Guide. U.S. Fish and Wildlife Service, Region 1, Portland, Oregon. 326 pp.

NatureServe. (2026). Calochortus indecorus: Sexton Mountain Mariposa Lily. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available at: https://explorer.natureserve.org/ [Accessed on 22 August 2026]

Oregon Natural Heritage Program. (2001). Rare, Threatened and Endangered Plants and Animals of Oregon. Oregon Natural Heritage Program, Portland, Oregon. 94 pp. (98 pp. PDF).

POWO. (2024). Calochortus × indecorus Ownbey & M.Peck. Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 31 March 2024]

Siddall, Jean L., Chambers, Kenton L. and Wagner, David H. (1979). Rare, threatened and endangered vascular plants in Oregon — an interim report. Oregon Natural Area Preserves Advisory Committee, Division of State Lands. 109 pp.

Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.

WCMC (World Conservation Monitoring Centre). (1992). Global Biodiversity: Status of the Earth's living resources. London: Chapman & Hall. xx + 594 pp.

https://en.wikipedia.org/wiki/Calochortus_indecorus

https://vanishingflora.proboards.com/thread/3964/calochortus-indecorus