The Amaranthoideae are a subfamily of the Amaranthaceae. The stamens have anthers with two lobes (locules) and four pollen sacs.
The main distribution of the subfamily is in tropical America, in tropical and southern Africa, and in Australia.
The genera Amaranthus (the amaranths) and Celosia (the cockscombs) contain many ornamental species, as well as species whose seeds are used as pseudocereals and leaves as leaf vegetables.
thumb|[[Amaranthus retroflexus, cladus Amaranthoids]]
thumb|[[Celosia argentea, Celosieae]]
thumb|[[Aerva lanata, cladus Aervoids]]
thumb|[[Achyranthes splendens, cladus Achyranthoids]]
Systematics
The subfamily Amaranthoideae comprises about 57 genera with about 330 species. Phylogenetical research revealed that the subfamily is polyphyletic and its traditional classification (tribe Amarantheae Rchb. with two subtribes Amaranthinae und Aervinae) does not reflect the phylogenetic relationship.
- Nototrichium Hillebr.
- Pandiaka (Moq.) Hook. f.
- Psilotrichum Blume (Syn.: Psilostachys Hochst.), with about 14 species.
- Pupalia Juss.
- Sebsebea Di Vincenzo, Berends., Wondafr. & Borsch
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