Achyranthes

Achyranthes
A. splendens
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Amaranthaceae
Subfamily: Amaranthoideae
Genus: Achyranthes
L.
Species

See text

Synonyms
  • Achiranthes P.Browne, orth. var.
  • Achyropsis (Moq.) Hook.f.
  • Amorgine Raf.
  • Cadelari Adans.
  • Cadelaria Raf.
  • Cyathula Lour.
  • Nototrichium Hillebr.
  • Stachyarpagophora Vaill. ex M.Gómez

Achyranthes is a genus of medicinal and ornamental plants in the amaranth family, Amaranthaceae. Chaff flower is a common name for plants in this genus. The Hawaiian species (A. divaricata, A. humile, and A. sandwicensis) are known in Hawaiian as kuluʻī.

A 2024 morphological and phylogenetic analysis by Vanessa Di Vincenzo et al. merged the genus Achyropsis and the Hawaiian genus Nototrichium into Achyranthes to make it monophyletic. The genus is characterized by solitary, fertile flowers.