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Japanese chaff flower

Scientific Name: Achyranthes japonica

Family: Amaranthaceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Japanese Chaff Flower (Achyranthes japonica)

Japanese Chaff Flower, scientifically known as Achyranthes japonica, is a perennial plant belonging to the Amaranthaceae family. It is also referred to simply as Chaff Flower.

Considerations for Pets

  • The plant produces seeds that can stick to animals.

Taxonomy and Nomenclature

  • Scientific Name: Achyranthes japonica (Miq.) Nakai
  • Family: Amaranthaceae
  • Genus: Achyranthes
  • Synonym: Achyranthes bidentata Blume var. japonica Miquel

Distribution and Habitat

Native to eastern and southeastern Asia, Achyranthes japonica has been introduced to other regions, including the Eastern United States and southern Illinois. It can invade a wide variety of habitats, particularly floodplain forests and riverbanks.

Ecological Role

  • Achyranthes japonica is considered an invasive species. It can form dense populations and outcompete native vegetation.

Morphological Characteristics

  • It is a perennial plant, growing up to 1 meter (3 ft 3 in) in height. Mature stems are 0.75-1.5m.
  • The stems range from smooth to slightly pubescent.
  • The small flowers have no petals and are clustered tightly on the inflorescence which occur at the ends of the stems and upper branches.
  • It flowers from July to September, and the seeds ripen from September to October.
  • The flowers are hermaphrodite (have both male and female organs).

Traditional/Reported Uses

  • Has been reported to be used for all kinds of pain, arthritis, extravasated blood, lumbago, and rheumatism.

Additional Information

  • USDA PLANTS Symbol: ACJA
  • Species Code: ACJA
  • U.S. Nativity: Exotic
  • Habit: Forbs/Herbs

Resources and Further Information

  • USDA PLANTS Database
  • Invasive Plant Atlas
  • EDDMapS (Early Detection & Distribution Mapping System)
  • ResearchGate (for the Fact Sheet: Ecology and Control of Japanese Chaff Flower)