Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : amade
Synonym(s) of Sc. name: Amaranthus prostratus Balbis, Albersia deflexa Fourreau , Euxcolus deflexus Rafinesque
Classification: Amaranthaceae, Dicotyledonous
Common name: perennial pigweed
Synonym(s) of Common name:
Name per country: DE : Herabgebogener Amarant ; ES : amaranto rastrero ; FR : amarante couchée ; IT : amaranto prostrato ; PT : bredo-perene ; EN : perennial pigweed ;
Biological type: Perennial with stolons
- Cotyledons elliptical, with rounded tip, more or less petiolate.
- Entire leaves, elliptical to ovate, with entire margin.
- Height: 30 100 cm.
- Stem pubescent at upper part, very large, slender, prostate, decumbent.
- Leaves rhombic ovate, attenuated at base and at top, margin slightly wavy. Lamina pale green with brown marks or entirely reddish with slight markings.
- Flowers sometimes axillary, perianth with 2 3 pieces. Flowers forming a false spike, terminal pointed tuft, greenish or reddish, axilaries form glomerules and terminal panicles.
- Fruits longer than sepals (2,5 3 mm), ovate elongated, rounded in shape, dehiscent.
- Biological type: perennial with stolons.
Ecological profile (click on flags):
Present
Present
Present
Present
