Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : amach
Synonym(s) of Sc. name: Amaranthus hypochondriacus L., Amaranthus patulus Bertoloni , Amaranthus powelli S.
Classification: Amaranthaceae, Dicotyledonous
Common name: green amaranth
Synonym(s) of Common name:
Name per country: DE : Bastard-Amarant ; ES : amaranto hibrido ; FR : amarante hybride ; IT : amaranto a spiga verde ; PT : bredo ; EN : green amaranth ;
Biological type: Annual
.
- Cotyledons elliptical, with rounded tip, more or less petiolate.
- Entire leaves, elliptical to ovate, with entire margin.
- Height: 15-100 cm.
- Stem erect, palmate, only the upper part is slightly hairy.
- Leaves ovate, rhomboid, with plain margin, more or less glabrous. Inflorescence in long spike, elongated, spiciform, often branched mucronate, sharp and pointed. Perianth formed of 5 oblong pieces, lanceolate and finely acuminate.
- Fruit slightly wrinkled and dehiscent
- Triazine resistant populations exist in France, U.S.A., Sweden, Hungary, Italy, Israel, Spain, Canada.
- Risk of confusion with Amaranthus cruentus L., Amaranthus bouchonii Thell.
- Biological type: annual.
Mistake with: Amaranthus cruentus , Amaranthus bouchonii
Ecological profile (click on flags):
Rare
Present
Present
Present
Present
