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Erigeron robustior
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Robust Daisy
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Erigeron robustior
  

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About Robust Daisy (Erigeron robustior) Erigeron robustior is a North American species of flowering plant in the daisy family known by the common name White cushion fleabane or Willamette fleabane. It is native to the southwestern Oregon and northern California in the western United States. Erigeron robustior grows in rocky of gravely slopes, sometimes in serpentine soil. It is an perennial herb up to 55 centimeters (22 inches) tall, forming a thin tap root, not growing into colonies as do some of the other species in the genus. The inflorescence usually contains 1-3 flower heads. Each head contains 21-36 white or pink ray florets surrounding many yellow disc florets.
Plant Description
Plant Type
Perennial herb

Max. Height
1.8 ft (0.5 m)

Flower Color
Pink, White

Native Status
Natural Setting
Elevation ?
1867' - 5013'

Annual Precip. ?
60.3" - 122.4"

Summer Precip. ?
0.98" - 3.68"

Coldest Month ?
37.5° F - 44.5° F

Hottest Month ?
60.6° F - 67.2° F

Humidity ?
0.29 vpd - 17.48 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Willamette Fleabane, White Cushion Fleabane


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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