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Achyranthes aspera L.
CHAFF-FLOWER
Chaff Flower; Washermans plant; Achyranthes argentea Lam; Achyranthes australis RBr; Achyranthes canescens RBr; Devils horsewhip

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Achyranthes aspera
© Pankaj Oudhia, 2008-2013 · 0
Achyranthes aspera
Achyranthes aspera
© Pankaj Oudhia, 2008-2013 · 0
Achyranthes aspera

Achyranthes aspera
© Pankaj Oudhia, 2008-2013 · 0
Achyranthes aspera

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo bliti @ BPI (1)
Clavicipitaceae  Aschersonia @ BPI (1)
Encyrtidae  Acerophagus belenaguirreae @ UCRC_ENT (3)
Glomerellaceae  Colletotrichum @ BPI (1)
Mycosphaerellaceae  Cercospora achyranthina @ BPI (3)
_  Gyrothrix @ BPI (1)

Uredo maculans @ BPI (2)

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FNA | Family List | FNA Vol. 4 | Amaranthaceae | Achyranthes

1. Achyranthes aspera Linnaeus, Sp. Pl. 1: 204. 1753, name conserved.

Centrostachys aspera (Linnaeus) Standley

Plants perennial or annual. Stems 0.4-2 m, pilose or puberulent. Leaf blades elliptic, ovate, or broadly ovate to orbiculate, obovate-orbiculate, or broadly rhombate, 1-20 × 2-6 cm, adpressed-pubescent abaxially and adaxially. Inflorescences to 30 cm; bracts mem-branous; bracteoles long-aristate, spinose; wings attached at sides and base. Flowers: tepals 4 or 5, length 3-7 mm; pseudostaminodes with margins fimbriate at apex, often with dorsal scale. Utricles ± cylindric, 2-4 mm, apex truncate or depressed.

Varieties 6 (2 in the flora): se United States, Mexico, West Indies, Central America, South America, Eurasia, Africa.

Achyranthes aspera is a variable, pantropical species divided into six varieties (C. C. Townsend 1974), two of which occur in the flora. The variety with a long perianth and acuminate leaves has long been called var. aspera ; the variety with a short perianth and blunt leaves, var. indica . However, A. Cavaco (1962) showed that the type of var. indica must be the type of the species A. aspera , thus var. indica is a homotypic synonym of var. aspera . Townsend made the combination A. aspera var. pubescens for plants previously called var. aspera .

Updated: 2020-11-26 07:08:30 gmt
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