Amaranthus hybridus L.[Agg]

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Amaranthus hybridus

Photo: Bart Wursten
Mukuvisi Woodland, office area

Amaranthus hybridus

Photo: Bart Wursten
Mukuvisi Woodland, office area

Amaranthus hybridus

Photo: Bart Wursten
Leopard Rock Hotel Golf Course

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Synonyms:
Common names: Pigweed (English)
Frequency: Common
Status: Introduced
Description:
Large annual weed, reaching up to 2-3 m.
Notes:

Two subspp. are recognised in Flora Zambesiaca, namely subsp. hybridus and subsp. cruentus (L.) Thell. This taxon is to be used for records for which the subspecies is not known.

The well known form with red inflorescences (see photos) is sometimes referred to as var. erythrostachys Moq. but this distinction is not universally accepted as deserving taxonomic rank.

Derivation of specific name:
Habitat: In disturbed ground and as a weed of cultivated land.
Altitude range: (metres) 300 - 1550 m
Flowering time: Nov - Jun
Worldwide distribution: Native of America, but now well naturalised throughout the tropics and subtropics of the world and occurring also as a casual in temperate regions.
Zimbabwe distribution: W,C,E,S
Growth form:
Endemic status:
Red data list status:
Insects (whose larvae eat this species):
Spot characters: Display spot characters for this species
Literature:

Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 21. (Includes a picture).


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Other sources of information about Amaranthus hybridus:

Flora of Mozambique: Amaranthus hybridus
African Plant Database: Amaranthus hybridus
Biodiversity Explorer (Biodiversity of southern Africa): Amaranthus hybridus
EOL (Encyclopedia of Life): Amaranthus hybridus
ePIC (electronic Plant Information Center): Amaranthus hybridus
Flora Zambesiaca web site: Amaranthus hybridus
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Amaranthus hybridus
IPNI (International Plant Names Index): Amaranthus hybridus
JSTOR Plant Science: Amaranthus hybridus
Kew Herbarium catalogue: Amaranthus hybridus
Tropicos: Amaranthus hybridus
West African Plants database: Amaranthus hybridus


Copyright: Mark Hyde, Bart Wursten and Petra Ballings, 2002-13

Hyde, M.A., Wursten, B.T. & Ballings, P. (2013). Flora of Zimbabwe: Species information: Amaranthus hybridus.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=164500, retrieved 22 May 2013

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