Amaranthus hybridus (weed)
| Literature database |
|---|
| 198 articles sorted by: |
| • year (descending) |
| • research topics |
| • countries/regions |
| • affected crops |
| • list of natural enemies |
Amaranthus hybridus (weed) L. - (smooth pigweed)
The weed is common in temperate and subtropical regions of the Americas and is also found in other continents. It affects maize, cotton, soybean and various other crops. The economic threshold in soybean has been cited as ½ to 2 plants per m2, depending on whether it establishes itself early or late in the growing season. It also causes growth reductions in young peach trees at 2 plants per m2. In addition, the weed can be poisonous to livestock if ingested in large quantities. On the other hand, A. hybridus is used as a green vegetable is some countries.
| Vernacular names | |
|---|---|
| • Deutsch: | grünähriger Amarant |
| • English: | smooth pigweed spleen amaranth pigweed slim amaranth |
| • Español: | amaranto hibrido quelite blanco |
| • Français: | amarante hybride |
The plant grows to a height of about 1 m and has ovate leaves, 10-15 cm long. A. hybridus has female and male flowers on the same plant. The female flowers usually predominate on the plant at a ratio of 10:1. In general morphology, it resembles other species of Amaranthus and the flowers and fruits need to be examined to separate A. hybridus from other common Amaranthus species like A. retroflexus or A. powellii.
Synonyms:
Amaranthus chlorostachys
Amaranthus patulus
For a review and for a comparison with A. retroflexus and A. powellii see Costea et al., 2004.
- Other images of Amaranthus hybridus (weed) (IPM Images - click to enlarge)
foliage
flowers
seeds
