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flatspine burr ragweed
Scientific Name: Ambrosia acanthicarpa
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Ambrosia acanthicarpa: Flat-Spine Burr-Ragweed
Ambrosia acanthicarpa, commonly known as flat-spine bur-ragweed, is an annual plant belonging to the Asteraceae family. It is also known by various other common names.
Considerations for Pets
- The plant has burs with flattened, divergent spines.
Considerations for Children
- The plant has burs with flattened, divergent spines.
Common Names
- Flat-spine bur-ragweed
- Annual burrweed
- Annual bur-sage
- Bur ragweed
- Flat spine bursage
- Annual bursage
- Sand bur
- Hooker's bur-ragweed
- Western sand-bur
Taxonomy and Nomenclature
- Scientific Name: Ambrosia acanthicarpa Hook.
- Family: Asteraceae (Aster Family)
- Genus: Ambrosia
- Species: acanthicarpa
- Synonyms:
- Franseria acanthicarpa (Hook.) Coville
Morphological Characteristics
- The plant is characterized by burs that are 5-10 mm long with several series of flattened, divergent spines.
- Leaves are broadleaf.
- Flowers are green.
Synonyms and Other Names
Other common names include flatspine burr ragweed, annual bursage, bursage, bursage ragweed, flat-spine burr-ragweed, sand bursage, and more.
Further Information
- USDA-NRCS PLANTS Database
- Oregon Flora Project