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Baileya pleniradiata

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About Woolly Marigold (Baileya pleniradiata) Baileya pleniradiata is a species of flowering plant in the daisy family which is known by the common name woolly desert marigold. It is native to desert regions of the southwestern United States and northern Mexico, where it grows in sandy habitat. This is an annual herb producing a light gray-green to nearly white woolly branching stem up to half a meter in height. The leaves are up to 8 centimeters long and may split into a few lobes. Each flower cluster is composed of a single flower head which is borne on a peduncle up to 10 centimeters long. The flower head has a center of yellow disc florets surrounded by a fringe of ray florets, sometimes in two or more layers, each bright yellow and up to a centimeter in length. The fruit is a sharply angled achene a few millimeters long.
Plant Description
Plant Type
Perennial herb, Annual herb

Max. Height
1.6 ft (0.49 m)

Flower Color

Native Status

Natural Setting
Site Type
Desert, sandy soils


Elevation ?
-56' - 6904'

Annual Precip. ?
2.6" - 17.2"

Summer Precip. ?
0.19" - 2.68"

Coldest Month ?
35.7° F - 60.9° F

Hottest Month ?
59.0° F - 88.8° F

Humidity ?
3.22 vpd - 40.70 vpd


Landscaping Information
Nursery Availability
Rarely Available

Other Names
Common Names
Woolly Desert Marigold

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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