Amaranthus dubius is a ANNUAL growing to 1 m (3ft 3in). It is frost tender. It is in leaf from April to October, in flower from July to September, and the seeds ripen. The name Amaranthus dubius was first published by Martius () without diagnosis and description, so it has to be considered invalid. Amaranthus dubius is a weedy plant widespread throughout the humid lowland tropics. It originates from tropical America, where it is common in the Caribbean.

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Flowers unisexual, subsessile, with 4— 5 tepals up to 2. Amaranthus dubiusa morphologically deviant allopolyploid, is very close genetically to both A. Spleen amaranth is native to Asia, Africa and Europe, and is widely cultivated as a green leafy vegetable in Africa and South Asia.

The species is monoecious individual flowers are either male or female, but both sexes can be found on the same plant and is pollinated by Wind. It includes at least 17 species with edible leaves.

It is not common to add potash. It is also recorded growing in disturbed sites in Hawaii, in secondary vegetation, and as a weed in clearings, gardens, waste places and plantations PIER, In Europe, it occurs locally in France and Germany.

It is cultivated in amarnathus countries, especially in Africa, but it can be difficult to know whether its presence in a country is only as a cultivated plant or as a naturalised plant.

Amaranthus dubius (spleen amaranth)

The green variety is practically indistinguishable from Amaranthus viridis. Citation in news articles. Plants For A Future have a number of books available in paperback and digital form.

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Inflorescences terminal panicles and axillary spikes; panicles erect or often drooping, green, dense, branched, leafless at least distally. Preliminary results toward a revision of the Amaranthus hybridus species complex Amaranthaceae. Please view the copyright link for more information. Amaranthus dubius is a weedy plant widespread throughout the humid lowland tropics.

Our new book to be released soon is Edible Shrubs. Indian Journal of Agricultural Sciences, 59 4: Flowering starts after weeks, showing a weak quantitative short-day reaction.

Canadian Journal of Botany Seed lenticular, compressed, c.

Bracteole number Apiaceae 0 Bracts in plantain Plantago NA Final leaf segment length compound lvs only 0 mm Final leaf segment length to width ratio compound lvs only 0 Final leaf segment width compound lvs only 0 mm Leaf arrangement alternate: Plant Sociology Phytosociological studies on anthropic communities, particularly in Africa, Asia, and Australia, and on American tropical woodland.

Amaranthus dubius amaranthus dubius and the x – k – jpg www. This QR Code is unique to this page. On Cousine Island, Seychelles, where A. Most if not all members of this genus photosynthesize by a more efficient method than most plants. Erect annual herb, up to cm tall; stems slender to stout, branched, glabrous or upwards, especially in the inflorescence, with short to rather long hairs. In the Bantu-speaking regions of Uganda it is known as Doodo [5] and is commonly cut very finely and cooked with onions and tomatoes or sometimes mixed with a peanut sauce.

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There are no known economic impacts of A. Each plant produces a high number of seeds. National Plant Data Center.

From Wikipedia, the free encyclopedia. Food composition table for use in Africa. Cytomorphological and phylogenetic studies of the genus Amaranthus from Nigeria. We are currently updating this section. Amaranthus dubius Martius ex Thellung, Fl. It originates from amaganthus America, where it is common in the Caribbean region and from southern Mexico to northern South America.

Amaranthus dubius

Case studies on invasive behaviour. At harvest growers spare a few vigorous plants for seed. Amaranthus dubius is recognized as an easy-to-grow, productive and nutritious vegetable, especially for the rainy season.

The grain amaranths and their relatives: Bracts lanceolate, shorter than 2 mm, shorter than tepals, apex spinescent.

Brown G, Mies B, Used as a potherb, they are considered to be very palatable[]. Inflorescence spikelike or paniculate, axillary and terminal, the terminal one up to 25 cm long, consisting of glomerules dubiuus or less isolated at base of inflorescence and agglomerated towards apex; bracts up to 2.

If the crop is sown directly, a once-over harvest by uprooting or by cutting at ground level may be done 3—4 weeks after sowing. International Common Names English: Flowering plants of Jamaica. A conspectus of the genus Amaranthus L.