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redroot amaranth

Scientific Name: Amaranthus retroflexus

Family: Amaranthaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual

Other Names:

       

Redroot Amaranth (Amaranthus retroflexus)

Redroot amaranth, scientifically known as Amaranthus retroflexus, is a common plant found across various environments. It goes by several common names, reflecting its widespread distribution and characteristics.

Common Names

  • Red-root amaranth
  • Redroot pigweed
  • Pigweed
  • Wild Beet
  • Common Amaranth
  • Green Amaranth
  • Rough Pigweed
  • Careless Weed
  • Keerless Weed
  • Prince of Wales feather
  • Powell's amaranth

Considerations for Pets

While the provided text states that no members of this genus are known to be hazardous, it is important to consider that Amaranthus retroflexus is often found in gardens, waterways, roadsides, and other areas potentially accessible to pets. It is always best to supervise your pets in areas where this plant may be present.

Taxonomy and Nomenclature

  • Scientific Name: Amaranthus retroflexus L.
  • Family: Amaranthaceae (Pigweed family, Amaranth family)
  • Kingdom: Plantae
  • Synonyms: Not explicitly stated in the text, but various common names are used interchangeably.

Distribution and Habitat

  • Found in all 50 US states.
  • Grows up to 7900 feet (2400 m) in the Central Valley, northwestern region, and central-western region.
  • Common locations include gardens, waterways, roadsides, waste areas, orchards, and cropland.

Ecological Role

  • Considered a summer annual broadleaved weed.
  • Often associated with new establishments and other areas of disturbed soil.
  • Can become a serious cropland weed.
  • Native to the tropical Americas but is widespread as an introduced species on most continents.

Morphological Characteristics and Growth Habits

  • Summer annual broadleaf plant.
  • Typically grows about 2 to 3 feet (0.6 to 0.9 m) high, but can reach up to 6 feet (1.8 m).
  • Seed leaves (cotyledons) are narrow.
  • Stem below the seed leaves (hypocotyl) is smooth.
  • Develops a deep, thick taproot.
  • Lens-shaped seeds are dark brown or black.
  • Forms a tumbleweed.

Quirky Facts

  • The name Amaranthus is derived from the Greek, meaning "not to wither," referring to its persistent flower spike.
  • "Redroot Amaranth" refers to the roots that are often red.