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Scale Bud
Anisocoma acaulis

About Scale Bud (Anisocoma acaulis) Anisocoma acaulis (scale bud) is a wildflower found in the Mojave and Colorado Deserts above 2,000 feet. It is the sole member of monotypic genus Anisocoma. The plant grows a flat mat of jagged lobed leaves that lie on the ground. It sends up stalks up to 20 centimeters tall topped with flowers which bloom from April to June. The flowers may be yellow or white with yellow centers. The frilly ray florets are rectangular with flat or slightly toothed tips. This flower is found growing in colonies in sandy places and washes, and bleeds milky sap if cut. The common name "scale bud" is a reference to the scaly appearance of the closed flower bud.
Plant Description
Plant Type
Annual herb

Max. Height
7.9 in (20.1 cm)

Flower Color
Yellow, White

Native Status

Natural Setting
Site Type
Sandy washes, dry slopes


Elevation ?
-132' - 10493'

Annual Precip. ?
2.4" - 38.4"

Summer Precip. ?
0.16" - 3.18"

Coldest Month ?
25.3° F - 60.6° F

Hottest Month ?
49.4° F - 90.2° F

Humidity ?
1.17 vpd - 48.21 vpd


Landscaping Information
Common uses
Bee Gardens

Nursery Availability
Rarely Available

Other Names
Common Names
Scale-bud, Scalebud

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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