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Acmispon junceus
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Rush Broom
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Acmispon junceus

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About Rush Broom (Acmispon junceus) Lotus junceus is a species of legume known by the common name rush deervetch. It is endemic to California, where it is known from the northern and central coast and the coastal mountain ranges. It can be found from beaches inland to serpentine slopes and chaparral. It is a hairy, prostrate or spreading perennial herb lined with leaves each made up of small oval leaflets. The flower cluster bears up 8 yellow pealike flowers each up to about a centimeter long. The fruit is a small beaked legume pod.
Plant Description
Plant Type
Perennial herb

Max. Height
0.26 - 1.3 ft (0.08 - 0.4 m)

Flower Color

Native Status

Natural Setting
Site Type
Sandy places


Elevation ?
20' - 2799'

Annual Precip. ?
11.2" - 64.3"

Summer Precip. ?
0.16" - 0.69"

Coldest Month ?
41.9° F - 55.2° F

Hottest Month ?
59.3° F - 78.4° F

Humidity ?
0.47 vpd - 26.14 vpd


Landscaping Information
Nursery Availability
Rarely Available

Other Names
Common Names
Rush Deervetch

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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