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button mushroom (Agaricus bisporus), photo
Photo
Cultivated

Button mushroomAgaricus bisporus

portobello · cremini

Agaricus bisporus is the edible button mushroom you find at the market. It also grows wild in Mexico. Cremini is its immature brown form and portobello is its mature brown form.[2][9]

Edible. Eat it cooked. Never eat a wild mushroom identified only from photos.

  • Season in Mexico
  • HabitatSoil and grasslands
  • FlavorMild, umami
  • GrowingHard
  • FamilyAgaricaceae

How do you identify button mushroom?

Cap
Measures 2.5–14 cm; white in some cultivated varieties and brown in others. Described Mexican wild specimens measure 5–9 cm and change from whitish to beige and light brown, with a darker center and brown fibrils.[1][2]
Gills
Free from the stem and close together; pink at first, then dark brown to nearly black.[1]
Stem
2–7 cm long and 1–2.5 cm thick; white, sometimes bruising reddish to brownish.[1]
Ring
Thin; may disappear at maturity.[1]
Flesh
White and firm; usually stains pinkish to reddish, then brownish.[1]
Spore print
Dark brown.[1]
Smell
Faint, mushroom-like and pleasant.[2]

Can you eat button mushroom?

It is edible. If you forage it, have a specialist confirm the species before you eat it: mistaken identification can cause serious poisoning.[2][8]

How do you grow button mushroom?

Temperature

Colonization24–27 °C

Fruiting16–18 °C

Humidity

Colonization0–90 %

Fruiting0–88 %

Full cycle: 45 days

Light
None

Substrates

  • Composted manure
  • Composted straw
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How do you cook button mushroom?

You can sauté it in oil or butter, roast it or grill it. Cremini is dark and firm. Use it with pasta, soups, pizza and egg; large portobello caps work well on the grill.[9][10]

Where and when does button mushroom grow?

Grows on soil in groups. In Tlaxcala it was documented beneath Cupressus trees, in potato fields or in grasslands.[2]

The cited Mexican wild collections were made in May, July, August, September and October; these are individual records.[2]

Wild occurrence is confirmed in Tlaxcala and Veracruz. Wild records also exist in North America, South America, Europe and Asia.[2]

Baja CaliforniaBCSonoraSONChihuahuaCHHCoahuilaCOANuevo LeónNLBaja California SurBCSSinaloaSINDurangoDURZacatecasZACSan Luis PotosíSLPTamaulipasTAMNayaritNAYJaliscoJALAguascalientesAGSGuanajuatoGTOQuerétaroQROHidalgoHGOColimaCOLMichoacánMICEstado de MéxicoMEXCiudad de MéxicoCDMXTlaxcalaTLXVeracruzVERYucatánYUCGuerreroGROMorelosMORPueblaPUETabascoTABCampecheCAMQuintana RooROOOaxacaOAXChiapasCHP
States with records (2/32): Tlaxcala, Veracruz

See the mushroom map

Fun facts

  • Its basidia, the cells that produce spores, usually bear two spores.[1]
  • The commercial white form traces back to a natural mutation found in 1925.[4]

Frequently asked questions

Sources

  1. Agaricus bisporus (MushroomExpert.Com)
  2. Primer registro de Agaricus bisporus (Basidiomycota, Agaricaceae) silvestre en Tlaxcala y Veracruz, México
  3. Champiñón de monte (Agaricus bisporus)
  4. Agaricus bisporus
  5. Agaricus xanthodermus (MushroomExpert.Com)
  6. Agaricus augustus, the Prince, Tom Volk's Fungus of the Month for August 2002
  7. Amanita phalloides (MushroomExpert.Com)
  8. Amanita phalloides Mushroom Poisoning -- Northern California, January 1997
  9. mushroom - FoodLink - Purdue Extension
  10. Mushrooms • The Nutrition Source

Written with AI help from the cited sources. A second model checked every fact against those sources and removed what they did not support.

Image credits

Photos are under free licenses (CC0, CC BY or CC BY-SA).

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