Allium macropetalum

{{Short description|Species of flowering plant}}

{{Speciesbox

|name = Desert onion

| image =2015.05.08 15.17.13 IMG 2017 - Flickr - andrey zharkikh.jpg

| status = {{TNCStatus}}

| status_system = TNC

| taxon = Allium macropetalum

| authority = M. E. Jones ex Ownbey

|synonyms=*Allium deserticola (M.E. Jones) Wooton & Standl.

• Allium reticulatum var. deserticola M.E. Jones

|synonyms_ref={{Cite web|url=http://www.theplantlist.org/tpl1.1/record/kew-295951|title=Allium macropetalum Rydb|website=theplantlist.org}}{{Cite web|url=https://www.tropicos.org/Name/18401689|title=Tropicos|website=tropicos.org}}

}}

Allium macropetalum, the desert onion, is a species of wild onion native to the desert regions of southwestern United States and northwestern Mexico. It is known from desert plains and hills in Sonora, Arizona, Utah, Colorado, New Mexico, and Texas,{{Cite web|url=https://wcsp.science.kew.org/namedetail.do?name_id=295951|title=World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew|website=wcsp.science.kew.org}} at elevations up to 2500 m.{{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101371|title=Allium macropetalum in Flora of North America @ efloras.org|website=efloras.org}}{{Cite web|url=http://bonap.net/MapGallery/County/Allium%20macropetalum.png|title=BONAP (Biota of North America Project) 2013 county distribution map Allium macropetalum}}

Allium macropetalum forms egg-shaped bulbs up to 2.5 cm long. Flowers are bell-shaped, pink to purple, up to 12 mm across, with yellow or purple anthers.Cronquist, A.J., A. H. Holmgren, N. H. Holmgren & Reveal. 1977. Vascular Plants of the Intermountain West, U.S.A. 6: 1–584. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert. 2 vols. Stanford University Press, Stanford.{{ISBN?}}{{page?|date=October 2021}}{{Cite book|url=https://www.biodiversitylibrary.org/item/47429|title=Bulletin of the Torrey Botanical Club|date=October 14, 1904|publisher=Torrey Botanical Club|volume=31}}{{Cite book|url=https://www.biodiversitylibrary.org/item/13776|title=Contributions from the United States National Herbarium|date=October 14, 1912|publisher=Smithsonian Institution Press|volume=16}}{{Cite book|url=https://www.biodiversitylibrary.org/item/40359|title=Contributions to Western Botany. No. 10|first=Marcus E.|last=Jones|date=October 14, 1902 }}