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Russian pigweed
Scientific Name: Axyris amaranthoides
Family: Chenopodiaceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Russian Pigweed (Axyris amaranthoides)
Axyris amaranthoides, commonly known as Russian pigweed and upright axyris, is an annual weed found in various regions. This plant is also known by its Chinese name, zhouli (轴藜).
Considerations for Pets
- This plant propagates by seeds.
Considerations for Children
- This plant propagates by seeds.
Taxonomy and Nomenclature
- Scientific Name: Axyris amaranthoides L.
- Common Names: Russian pigweed, upright axyris, Russian-pigweed
- Family: Chenopodiaceae (now often included within Amaranthaceae)
- Synonyms: The text mentions confusion between Chenopodiaceae and Amaranthaceae families.
- Taxonomic Rank: Species
Distribution and Habitat
- Native to Asia, it has become naturalized in North America.
- Found in both Canada and the United States.
- Specifically mentioned in Manitoba, Minnesota, and the Dakotas.
- Grows in grain fields and other agricultural areas.
Ecological Role
- Classified as an invasive crop weed, particularly in grain crops.
- Notably problematic in North Dakota and the prairie Provinces of Canada.
Morphology and Biology
- An annual spring weed.
- Plant height ranges from 15 to 80 cm.
- Stems can grow up to 4 feet (12 dm) high.
- Inconspicuous flowers.
- Propagates by seeds, with bloom time in June-July and seed time in July-August.
Genetic Information
- Chromosome number: 2n=18
Further Information
- USDA-NRCS PLANTS Database is mentioned as a source for images and information.
- T.S. Bakshi Herbarium is mentioned as a resource, possibly for collections and specimens.
- Discover Life has a page dedicated to the biology, natural history, ecology, identification, and distribution of this plant.