Acmispon glaber
species of plant
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). 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.
Description
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 two to seven flowers in the upper leaf axils. The flowers become reddish with age. The fruit consists of a curved legume with two seeds.
Ecology
Acmispon glaber is a food consumed by numerous wildlife, providing intake for hummingbirds, bees, butterfly larvae, and deer. Among the larvae are the Acmon blue, Afranius duskywing, Avalon scrub hairstreak, bramble hairstreak, funereal duskywing, northern cloudywing, and at one point in time the extinct Xerces blue. Common plant associates in chaparral, especially in the transition between coastal chaparral and coastal sage scrub, include California sagebrush and toyon.
This brief starts where responsible research should: with the source description of “Acmispon glaber” as species of plant. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated May 20, 2026. The linked authority identifier is Q15490404. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1500.
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This entry incorporates text from “Acmispon glaber” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.