Wislizenia refracta

Wislizenia refracta
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Brassicales
Family:	Cleomaceae
Genus:	Wislizenia
Species:	W. refracta
Binomial name
	Wislizenia refracta; Engelm. in Wisl.
Synonyms
	Wislizenia costellata Rose ex Greene; Wislizenia melilotoides Greene; Wislizenia refracta var. melilotoides (Greene) I.M. Johnst.; Wislizenia scabrida Eastw.;

Wislizenia refracta, common names jackass-clover or spectacle fruit, is one of the three recognized species in its genus Wislizenia, although some authors have suggested considering them as subspecies.^[2] Wislizenia refracta is native to northwestern Mexico and the southwestern United States. It has been reported from Chihuahua, Sonora, trans-Pecos Texas, New Mexico, Arizona, Utah, Nevada and from California (Riverside, Kern and San Bernardino Counties).^[3] The species occurs in sandy flats, in desert scrub, and on disturbed sites such as roadsides.^[4]

Wislizenia refracta is an annual herb up to 200 cm (78.5 in) tall. Leaves are trifoliate, the leaflets ovate (egg-shaped), up to 5 cm (2 in) long. its Flowers are yellow.^[5]^[6]^[7]^[8]^[9]

References[]

^ Tropicos
^ Keller, S. 1979. A revision of the genus Wislizenia (Capparidaceae) based on population studies. Brittonia 31: 333-351.
^ Calflora Taxon Report
^ Flora of North America v 7 p 214
^ 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.

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[1] Tropicos

[2] Keller, S. 1979. A revision of the genus Wislizenia (Capparidaceae) based on population studies. Brittonia 31: 333-351.

[3] Calflora Taxon Report

[4] Flora of North America v 7 p 214

[5] Wislizenus, Friedrich (Frederick) Adolph. Memoir of a Tour to Northern Mexico: connected with Col. Doniphan's Expedition in 1846 and 1847 99. 1848.

[6] 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.

[7] 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.

[8] Munz, P. A. & D. D. Keck. 1959. California Flora 1–1681. University of California Press, Berkeley.

[9] Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert 2 vols. Stanford University Press, Stanford.

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