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Packera breweri
About Groundsel (Packera breweri) 0 Nurseries Carry This Plant Packera breweri is a species of flowering plant in the aster family known by the common name Brewer's ragwort. It is endemic to central California, where it occurs in the woodlands and grasslands of the Central Coast Ranges. They are more frequently found in mid-southern counties of California near the coast, such as Kern or Monterey. It is a biennial or perennial herb producing one erect stem from a fibrous root and caudex unit. It grows to a maximum height near one meter or slightly taller. It is mostly hairless, but sometimes has tufts of hairs in the leaf axils. The leaves may be up to 30 centimeters long near the base of the plant, their blades so deeply divided into lobes they appear to have leaflets. Each lobe is edged with teeth. Leaves occurring higher on the stem are smaller with narrower lobes.
Plant Description
Plant Type
Plant Type
Perennial herb

2 - 4 ft tall

Flower Color
Flower Color

Wildlife Supported

Landscaping Information
Full Sun, Part Shade

Natural Setting
Site Type
Site Type
Seasonally Moist, protected s

Annual Precipitation: 7.4" - 41.7", Summer Precipitation: 0.17" - 1.21", Coldest Month: 38.4" - 54.7", Hottest Month: 56.8" - 78.7", Humidity: 0.85" - 30.07", Elevation: 10" - 7945"

Alternative Names
Botanical Names: Senecio breweri
Common Names: Brewer's Groundsel, Brewer's Ragwort

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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