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triangle burr ragweed
Scientific Name: Ambrosia deltoidea
Family: Asteraceae
Category: Dicot
Growth: Subshrub, Shrub
Duration: Perennial
Other Names:
Ambrosia deltoidea: Triangle Bur Ragweed
Ambrosia deltoidea, commonly known as Triangle Bur Ragweed, is a North American flowering plant belonging to the aster family (Asteraceae). Other common names include Triangle Bursage and Triangleleaf Bursage.
Considerations for Pets
- The plant produces burr-like seeds.
Taxonomy and Nomenclature
- Scientific Name: Ambrosia deltoidea (Torr.) Payne
- Family: Asteraceae (Aster Family, also known as the Sunflower family)
- Genus: Ambrosia L. (ragweed, bursage)
- Synonym: Franseria deltoidea Torr.
Distribution and Habitat
- Native to North America.
- Commonly found in Arizona.
- Specifically mentioned as being present in the Sonoran Desert.
- Grows abundantly among saguaro cacti and palo verde trees.
Morphological Characteristics
- It is a subshrub or shrub.
- Perennial, meaning it lives for more than two years.
- Has numerous ascending to erect stems, typically 30-80 cm tall, arising from a woody base.
- The branches are dark brown, rounded or flat-topped.
- The fruit is a bur.
Ecological Role
- Ragweeds are anemophilous, meaning they are pollinated by wind. Their pollen is very small and light.
Quirky Facts
- Though commonly called a ragweed, the fruit of Ambrosia deltoidea is a bur.
Further Information
- USDA Symbol: AMDE4
- Discover Life: Discover Life
- Dave's Garden: Dave's Garden
- University of Chicago Library.
- BLM AZ930