Edible Mushrooms - Agaricus

Agaricus biporus is an edible mushroom native to grasslands in Europe and North America.  The earliest cultivation was made by French botanist Joseph Pitton de Tournefort in 1707.

It is widely consumed in Asian as canned button mushroom, since early 1970s.  Fresh Agaricus mushrooms are available in Asian markets only after the 2010s.

canned button mushroom

It has 2 colour states while immature : white and brown, both have various names.  When mature, and the cap is open, it has yet another different name.

When immature and white, it is known as common mushroom, button mushroom, white mushroom, champignon mushroom, etc.

When immature and brown, it is known as Swiss brown mushroom, Roman brown mushroom, Italian mushroom, cremini mushroom,  brown cap mushroom, chestnus mushroom, Portabollini, etc.

When mature, it is known as Portobello mushroom, champignon de Paris, etc.

fresh white button mushroom

fresh brown button mushroom

fresh Portobello mushroom