Commodity name Codex code Scientific name Also known as Representative crops
all commodities in Group 020 Cereal grains GC 0080 Seeds of gramineous plants and of dicotyledonous plants with
similarities in size and type of the seed, residue pattern and the use of the commodity
Wheat and Barley and Rice and Sorghum and Maize and Sweet corn
Cereal grains GC 0081 cereal grains except pseudocereals Wheat and Barley
Pseudocereals, or pseudograins GC 0082 produce dry fruit referred to as seed, nutlets, grains or achenes and are found in families such as Amaranthacee (amaranths), Chenopodiaceae (Canihua) and Polygoniaceae (buckwheat). This group also includes the small seeded crop chia (Lamiaceae).

Subgroup 020A, Wheat, similar grains, and pseudocereals without husks

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020A GC 2086 Subgroup of Wheat, similar grains, and pseudocereals without husks
Amaranth, grain GC 3080 Amaranthus spp, Amaranthus cruentus L., Amaranthus caudatus L., Amaranthus hypochondriacus L. Amaranth purple, Inca wheat, Princess–feather
Cañihua GC 0642 Chenopodium pallidicaule Aellen
Chia GC 3084 Salvia hispanica L.
Cram-cram GC 3085 Cenchrus biflorus Roxb.
Huauzontle GC 3086 Chenopodium berlandieri Moq. subsp. nuttalliae (Saff.) H. D. Wilson & Heiser
Psyllium sp. GC 3087 Plantago spp, Plantago arenaria Waldst. & Kit. Psyllium, Psyllium blond
Quinoa GC 0648 Chenopodium quinoa Willd.
Rye GC 0650 Secale cereale L.
Triticale GC 0653 Hybrid of Wheat and Rye ; Hybrid of Wheat and Rye
Wheat GC 0654 Cultivars of Triticum aestivum L., syn: Triticum durum Desf., syn: T. sativum Lam., T. vulgare Vill., Triticum monococcum L. subsp. Monococcum, Triticum turgidum L. subsp. dicoccon (Schrank) Thell., Triticum spp., Durum wheat, Einkorn wheat, Emmer, Khorasan wheat, Spelt, Triticum aestivum (wheat), Triticum tauschii (soft wheat), Triticum durum (durum) yes

Subgroup 020B, Barley, similar grains, and pseudocereals with husks

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020B GC 2087
Barley GC 0640 Hordeum vulgare L., syn: H. sativum Pers. yes
Buckwheat GC 0641 Fagopyrum esculentum Moench, syn: F. sagittatum Gilib.
Buckwheat, tartary GC 3082 Fagopyrum tataricum (L.) Gaertn.
Canarygrass, annual GC 3083 Phalaris canariensis L.
Oats GC 0647 Avena fatua L., A. abyssinica Hochst, Avena nuda L., Avena sativa L., A. abyssinica Hochst., Avena byzantina Koch Oat naked, Oat Red

Subgroup 020C, Rice Cereals

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020C GC 2088
Rice GC 0649 Oryza sativa L. ; several ssp. and cultivars, several ssp. and cultivars ; several ssp. and cultivars yes
Rice African GC 3088 Oryza glaberrima Steud.
Wild rice GC 0655 Zizania aquatica L. Wild Rice Eastern

Subgroup 020D, Sorghum Grain and Millet

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020D GC 2089
Hungry rice GC 0643 Digitaria exilis Stapf., Digitaria exilis (Kippist) Stapf, D. iburua Stapf. Acha, Black Fonio, Fonio, Fundi, White Fonio
Job’s tears GC 0644 Coix lacryma-jobi L. Adlay
Millet GC 0646 Echinochloa crus-galli (L.) Beauv., syn: Eleusine coracana (L.) Gaertn., Panicum crus-galli L., E. frumentacea (Roxb.) Link, syn: Panicum frumentaceum Roxb, Panicum miliaceum L., Panicum sumatrense Roth, Paspalum scrobiculatum L., Pennisetum glaucum (L.) R. Br., syn: P. typhoides (Burm. f.) Stapf. & Hubbard, P. americanum (L.) K. Schum., P. spicatum (L.) Koern, Setaria italica (L.) Beauv., Syn: Panicum italicum L., Chaetochloa italica (L.) Scribn. African millet, Barnyard Millet, Brown-corn millet, Bulrush Millet, Cat-tail millet, Common Millet, Emmer, Finger Millet, Foxtail Millet, Hog millet, Kodo Millet, Little Millet; Pearl Millet, Proso millet, Russian millet, Spiked millet
Sorghum Grain GC 0651 Sorghum bicolor (L.) Moench, spp. Sorghum guineense Stapf., ssp. Sorghum nervosum Bess. ex Schult., syn: ssp. Sorghum caudatum Stapf., Sorghum roxburghii Stapf., syn: Sorghum subglabrescens (Steud.) Schweinf. & Asch., syn: Sorghum caffrorum P. Beauv., several Sorghum ssp. and cultivars Chicken corn, Dari seed, Durra, Feterita, Guinea corn, Kaoliang, Kaffir corn, Milo, Shallu, Sorgo yes
Teff or Tef GC 0652 Eragrostis tef (Zucc.) Trotter, syn: E. abyssinica (Jacq.) Link

Subgroup 020E, Maize Cereals

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020E GC 2091
Maize GC 0645 Zea mays L. ; several cultivars, not including Popcorn and Sweetcorn, syn: Zea indurata Sturtev. ; several cultivars, not including Popcorn and Sweetcorn, several cultivars, not including Sweetcorn ; several cultivars, not including Popcorn and Sweetcorn Corn, Indian corn yes
Popcorn GC 0656 Zea mays L., var. everta Sturt., syn: Zea mays L., var. praecox
Teosinte GC 0657 Zea mays ssp. mexicana (Schrader) Iltis, syn: Zea mexicana (Schrader) Kunze, Euchlaena mexicana Schrader.

Subgroup 020F, Sweet Corns

Commodity name Codex code Scientific name Also known as Representative crops
includes all commodities in subgroup 020F GC 2090
Baby corn GC 3081 Zea mays L., several cultivars
Sweet corn (Corn-on-the-cob) (kernels plus cob with husk removed) GC 0447 Zea mays L., several cultivars, not including popcorn Corn-on-the cob yes
Sweet corn (whole kernel without cob or husk) GC 1275 Zea mays L., several cultivars, not including popcorn