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Ambrosia Bursage
Ambrosia ambrosioides
About Ambrosia Bursage (Ambrosia ambrosioides) 0 Nurseries Carry This Plant Ambrosia ambrosioides, also known as canyon ragweed or chicura is a ragweed found in the deserts of northern Mexico and ranging into the southern half of Arizona. Growing as a shrub from 1-2 meters high, its elongate, coarsely-toothed leaves range from 4-18 centimeter long and 1.5-4 centimeter wide. It is monoecious, with both terminal and axillary racemes consisting of staminate heads occurring above their pistillate counterparts. Flowering occurs mainly in February through April. The fruits are 10-15 millimeter burs covered with hooked spines.
Plant Description
Plant Type
Plant Type
Perennial herb

3.3 - 8 ft tall

Wildlife Supported

Landscaping Information
Full Sun

Natural Setting
Annual Precipitation: 9.7" - 19.2", Summer Precipitation: 0.20" - 0.27", Coldest Month: 52.0" - 54.6", Hottest Month: 71.0" - 73.6", Humidity: 1.81" - 18.76", Elevation: 26" - 1016"

Alternative Names
Common Names: Ambrosia Leaf Bur Ragweed, Canyon Ragweed

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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