amaranth

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Related to Amaranthus retroflexus: Amaranthus hybridus

am·a·ranth

, amaranthum (am'ă-ranth, am-ă-ran'thŭm), [C.I. 16185]
An azo dye; a soluble reddish-brown powder that turns magenta red in solution; used as a food, pharmaceutical, and cosmetic coloring agent, and occasionally in histology.
[G. amaranthon, a never-fading flower]

am·a·ranth

(am'ă-ranth)
A weed (Amaranthus) of widespread geographic distribution; some species are consumed as a foodstuff; its prolific ability to produce seed allows its use as a flour. Purported value both internally and externally (e.g., astringent).
Synonym(s): love-lies-bleeding, red cockscomb.
[G. amaranthon, a never-fading flower]
References in periodicals archive ?
Effects of environmental factors on germination and emergence of Amaranthus retroflexus.
Biology, life-strategy and invasiveness of Amaranthus retroflexus L.
Niche partitioning between two phosphogluco-isomerase genotypes in Amaranthus retroflexus.
Probably, in low densities of Amaranthus retroflexus, the soybean competed for light by addition of height, whereas in high densities of the weed, it captured light by shifting leaves to upper layers.
Probably, in low densities, the pigweed could be a more successful competitor than Pershing, but in high densities of the pigweed, Pershing could acted better than Amaranthus retroflexus for light absorption.
kuntze) on germination and growth of Amaranthus retroflexus L.
So that upon increasing the concentration of barley residue water extract, the length of rootlet, stemlet and plantlet of Amaranthus retroflexus (pigweed), Chenopodium album L (fat hen), Sorghum halapense (Jounson grass) and Centaurea cyanus (cornflower) were reduced.
Allelopathic Effect of aqueous extracts of pigweed, Amaranthus retroflexus L.
Types of weed in farms are: Chenopodium album, Amaranthus retroflexus, Portulaca oleraceae,Convolvulus arvensis, Echinochloa crus-gali, Kochia sp ,Solanum nigrum, Cichorium intybus, Acroptilon repens and etc.
Desmedipham controled Amaranthus retroflexus weeds completely but did not leave good effects on the other kind of weeds.
Amaranthus blitoides L) With 16/3%, Amaranthus retroflexus with 11/8% and millet (Setaria viridis L.