Cleomella refracta

{{Short description|Species of flowering plant}}

{{speciesbox

| image = Wislizenia refracta - Flickr - aspidoscelis.jpg

| genus = Cleomella

| species = refracta

| authority = (Engelm.) J.C.Hall & Roalson (2015)

| synonyms =

• Cleome refracta {{small|(Engelm.) Mabb. (2017)}}
• Cleomella coulteri {{small|Harv. ex A.Gray (1852)}}
• Wislizenia costellata Rose ex Greene (1906)
• Wislizenia melilotoides Greene (1906)
• Wislizenia refracta {{small|Engelm. (1848)}}
• Wislizenia refracta var. melilotoides (Greene) I.M. Johnst. (1924)
• Wislizenia scabrida Eastw. (1903)

| synonyms_ref = [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77146868-1 Cleomella refracta (Engelm.) J.C.Hall & Roalson]. Plants of the World Online. Retrieved 6 December 2023.

}}

Cleomella refracta, common names jackass clover or spectacle fruit, is a species of flowering plant in the cleome family, Cleomaceae. It is native to northwestern Mexico and the southwestern United States, particularly Chihuahua, Sonora, trans-Pecos Texas, New Mexico, Arizona, Utah, Nevada and California (Riverside, Kern and San Bernardino Counties).[http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Wislizenia+refracta+ssp.+refracta&one=T Calflora Taxon Report] The species occurs in sandy flats, desert scrub and disturbed sites such as roadsides.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220014333 Flora of North America v 7 p 214]

Cleomella refracta is an annual herb up to {{convert|200|cm|in|round=0.5|abbr=on}} tall. Leaves are trifoliate, the leaflets ovate (egg-shaped), up to {{convert|5|cm|in|round=0.5|abbr=on}} long. Its flowers are yellow.[https://www.biodiversitylibrary.org/page/28876362#page/99/mode/1up Wislizenus, Friedrich (Frederick) Adolph. Memoir of a Tour to Northern Mexico: connected with Col. Doniphan's Expedition in 1846 and 1847 99. 1848.]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.Holmgren, N. H., P. K. Holmgren & A.J. Cronquist. 2005. Vascular plants of the intermountain west, U.S.A., subclass Dilleniidae. 2(B): 1–488. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.Munz, P. A. & D. D. Keck. 1959. California Flora 1–1681. University of California Press, Berkeley.Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert 2 vols. Stanford University Press, Stanford.