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Acmispon glaber

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Title: Acmispon glaber  
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Subject: Chaparral, List of flora of the Sonoran Desert Region by common name
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Acmispon glaber

Acmispon glaber
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Loteae
Genus: Acmispon
Species: A. glaber
Binomial name
Acmispon glaber
(Vogel) Brouillet

Acmispon glaber (previously Lotus scoparius) (Common Deerweed, Deer Weed, Deervetch, California Broom or Western Bird's-Foot Trefoil) is a perennial subshrub in the family Fabaceae (pea family).[1] The plant is a pioneer species found in dry areas of California, Arizona, and Mexico. It is commonly found in many areas including chaparral, coastal sand and roadsides at elevations below 1500 m.


The Acmispon glaber stems are green, erect, somewhat branched, with small, deciduous, pinnate leaves consisting of three to six leaflets. The plant blooms from about March to August and has flowers that are bilateral, small (7-11 mm), yellow, and clustered together in an inflorescence consisting of 2 – 7 flowers in the upper leaf axils. The flowers become reddish with age. The fruit consists of a curved pod with two seeds.


A. glaber is a food consumed by numerous wildlife, providing intake for hummingbirds, bees, butterfly larvae, and deer.[2] Common plant associates in chaparral, especially in the transition between coastal chaparral and coastal sage scrub, include California sagebrush and Toyon.[3]

See also



  • {2008} USDA webpage
  • , GlobalTwitcher, ed. N. Stromberg

External links

  • - Photo Gallery
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