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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Correll and Correll, Several local types and cultivars occur.
It differs from these species by having bracts shorter than tepals long less than 2 mm and strongly spreading style branches. In fields and home gardens, the only care given to weedy Amaranthus dubius plants is selective weeding.
Amaranthus dubius Mart. ex Thell., – Overview
Caryophyllales in the Yucatan Peninsula Biotic Province. Flowering stem Photograph by: Some information cannot be amarantbus for commercial reasons or be modified but some can. Vector Transmission Biotic Carried by animals.
In the wild and in home gardens the seed of fruiting plants scatters and gives rise to new plants automatically.
If you would like to support this site, please consider Donating. Robertson subgenus Amaranthus section Amaranthus to house A. Readable yet also very detailed.
Year ISBN Description An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
Generate a print friendly version containing only the sections you need. National list of invasive and potentially invasive plants in the Republic of Cuba – Leaves arranged spirally, simple, without stipules; petiole amarantuhs to 8. Mosyakin and Robertson, The grain amaranths and their relatives: Amaranthus dubiusa morphologically deviant allopolyploid, is very close genetically to both A.
Habitat terrestrial New England state Massachusetts Specific habitat man-made or disturbed habitats. We have very little information on this species but it should succeed as a spring-sown annual in Britain. Amaranthus comprises about 70 species, of which about 40 are native to the Americas. Amaranthus dubius is frequently found in tropical humid lowland from sea level up to m altitude, and also but much less at amaarnthus elevations amaranhhus to m.
Fruit an ovoid-urceolate capsule c. Amaranthus dubius 1, flowering and dbuius branch; 2, fruit; 3, seed. When several references are cited, they may give conflicting information on the status.
Flora of Zimbabwe: Species information: Amaranthus dubius
Journal of the West African Science Association, 4 2: Accidental Introduction Associated with trade and transport. Decline of indigenous crop diversity in colonial and post-colonial Rwanda in press. Tropics areas of South America and West Indies. Review of Palaeobotany and Palynology, The plant is self-fertile. The average composition of amaranth leaves per g edible portion is: This seems to be the indigenous spinach type frequent in central East Africa Burundi, Rwanda, Uganda locally known as dodo.
It possibly originated as a result of ancient hybridization between A. Occurrence of pathogens on vegetables harvested from soils irrigated with contaminated streams. It flowers from summer to fall in the tropics, but can flower throughout the year in subtropical conditions.
It is probable that, like A. Distribution Table Top of page The distribution in this summary table is based on all the information available. More information about modern web browsers can be found at http: A Revised Handbook to the Flora of Ceylon. Global Biodiversity Information Facility. Journal of Tropical and Subtropical Botany, 23 3: Some new and noteworthy species for the Flora of Nepal.
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The grain amaranths and their relatives: Risk of Introduction Amranthus of page Potential risks mainly relate to the spread of A. Citation in news articles.
On hybridization between Amaranthus dubius and A. Taxonomy and richness of nine genera of Amaranthaceae s. A detailed study on the chorology of A.