page_title: Betoideae
section_title: Systematics
hierarchical_section_title: Betoideae / Systematics
caption_attribution_description: English: Patellifolia procumbens. Tenerife, Puerto de la Cruz, ruderal site with Pennisetum setaceum, ca. 70 m above sea level. Deutsch: Patellifolia procumbens. Teneriffa, Puerto de la Cruz, Ruderalfläche mit Pennisetum setaceum, ca. 70 m Meereshöhe.
context_page_description: The Betoideae are a small subfamily of the flowering plant amaranth family, Amaranthaceae sensu lato. Commonly known members include beet, sugar beet, chard, and mangelwurzel, which all are cultivars of Beta vulgaris.
context_section_description: Oskar Eberhard Ulbrich described the subfamily Betoideae in 1934 within the plant family Chenopodiaceae. He subdivided the taxon into two tribes, Hablitzieae and Beteae, the latter with only one genus, Beta. Phylogenetic research by Kadereit et al. (2006) confirmed this classification, whereas Romeira et al (2016) suggest only one tribe.
  The subfamily is now classified either in family Amaranthaceae sensu lato, or in Chenopodiaceae sensu stricto, (excluding the subfamily Polycnemoideae, as the other subfamilies of Chenopodiaceae, Betoideae, Camphorosmoideae, Chenopodioideae, Corispermoideae, Salicornioideae, Salsoloideae, and Suaedoideae, form a monophyletic group which is distinct from the Amaranthaceae s. str.). Current taxonomic treatments and morphological, physiological and phylogenetic studies seem to prefer Chenopodiaceae s. str. for reasons of taxonomic stability.
  The subfamily comprises five genera with about 13-20 species.
  Tribus Beteae Moq.:
  Beta L., about 7-12 species in West-Europe, Mediterranean, Southwest-Asia, with the important crops Sugar beet, Chard, Beetroot, Mangelwurzel
  Tribus Hablitzieae Ulbr.:
  Aphanisma Nutt. ex Moq., with one species:
  Aphanisma blitoides Nutt. ex Moq., an annual plant on Californian beaches
  Hablitzia M.Bieb., with one species
  Hablitzia tamnoides M.Bieb., a vine in the forests of the Caucasian floristic region
  Oreobliton Durieu, with one species
  Oreobliton thesioides Durieu & Moq., a subshrub in North-Africa, growing on chalk rocks in the Atlas mountains
  Patellifolia A.J.Scott, Ford-Lloyd & J.T. Williams (Syn. Beta sect. Procumbentes Moq.), was confirmed as a different genus. These are perennial procumbent herbs, with 3 species growing in coastal vegetation in Southern-Western Europe, with its center of diversity in the Macaronesian archipelagos:
  Patellifolia patellaris (Moq.) A.J. Scott & al. (Syn. Beta patellaris Moq.), on Canary Islands and in the western Mediterranean (Spain, Balearic islands, Sicily, Marocco)
  Patellifolia procumbens (Chr. Sm.) A.J. Scott & al. (Syn. Beta procumbentes Chr. Sm.), on Canary Islands
  Patellifolia webbiana (Moq.) A.J. Scott & al. (Syn. Beta webbiana Moq.), on Canary Islands
  Classification not sure: phylogenetically isolated, formerly included in Betoideae but to be excluded, maybe to be classified as a subfamily of its own. Recent molecular research provides some evidence for the inclusion in subfamily Corispermoideae:
  Acroglochin Schrad. ex Schult., with one species
  Acroglochin persicarioides (Poiret) Moq.
caption: Patellifolia procumbens
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