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Ambrosia deltoidea
Also called Triangle Bursage, Triangle Burr Ragweed, Triangle Leaf Bursage
Ambrosia deltoidea is a North American species of flowering plant in the family Asteraceae known by the common names triangle bur ragweed, triangle bursage, and triangleleaf bursage.
The plant is native to the Sonoran Desert region of North America, where it can be found in Baja California, Baja California Sur, and Sonora in Mexico, with its distribution extending north into Arizona in the United States.
This plant acts as a nurse plant for other species, providing shade and increased soil nitrogen for young growing plants. It also protects seedlings from herbivory. It is the main nurse plant for saguaro in Organ Pipe National Monument. It also serves as nurse plant for yellow paloverde, ocotillo, and some prickly pear species. Most bursage plants are associated with a perennial plant.
Flatspine bur ragweed · Ambrosia leaf bur ragweed · Ambrosia arborescens · Annual ragweed · Lanceleaf ragweed · Silver bur ragweed · Rio Grande ragweed · San Diego bur ragweed · Weakleaf bur ragweed · Tucson bur ragweed · Burrobush · Woolly fruit bur ragweed
Text excerpted from the Wikipedia article Ambrosia deltoidea by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
