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California Ragwort
Senecio californicus
About California Ragwort (Senecio californicus) 0 Nurseries Carry This Plant Senecio californicus is a species of flowering plant in the aster family known by the common name California ragwort. It is native to California as far north as the San Francisco Bay Area, and Baja California. It grows in sandy areas in several habitat types, and it is often seen at the coast in habitat such as sand dunes. It is an annual herb growing 10 to 40 centimeters tall or sometimes taller, from a taproot. The stems are solitary or grow in branching clusters. The leaves have linear or lance-shaped blades up to 7 centimeters long. They are sometimes fleshy, especially in plants that occur on the coastline. The inflorescence produces one to ten or more flower heads, which are lined with usually about 21 black-tipped phyllaries. They contain many yellow disc florets and each has usually 13 yellow ray florets about a centimeter long.
Plant Description
Plant Type
Plant Type
Annual Herb

0.33 - 1.3 ft tall

Flower Color
Flower Color

Wildlife Supported

Landscaping Information
Natural Setting
Annual Precipitation: 3.8" - 34.8", Summer Precipitation: 0.16" - 2.65", Coldest Month: 39.8" - 59.3", Hottest Month: 62.2" - 87.0", Humidity: 0.77" - 37.96", Elevation: 0" - 5871"

Alternative Names
Common Names: California Butterweed, California Groundsel

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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