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Ambrosia acanthicarpa
Ambrosia acanthicarpa Hook.
Flatspine Bur Ragweed, Annual Burweed, Annual Bursage, Hooker's Bur Ragweed, Western Sand-bur
Asteraceae (Aster Family)
Synonym(s): Franseria acanthicarpa, Gaertneria acanthicarpa
USDA Symbol: AMAC2
USDA Native Status: L48 (N), CAN (N)
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Plant Characteristics
Duration: AnnualHabit: Herb
Size Notes: Up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom Information
Bloom Color: White , Yellow , GreenBloom Time: Apr , May , Jun , Jul , Aug , Sep , Oct , Nov
Bloom Notes: Flowers are inconspicuous and without ray florets.
Distribution
USA: AZ , CA , CO , ID , KS , MN , MO , MT , ND , NE , NM , NV , OK , OR , SD , TX , UT , WA , WYCanada: AB , MB , SK
Web Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Ambrosia acanthicarpa in USDA PlantsFNA: Find Ambrosia acanthicarpa in the Flora of North America (if available)
Google: Search Google for Ambrosia acanthicarpa
Metadata
Record Modified: 2018-12-11Research By: CBR