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The Portobello mushroom (sometimes portobella) is a large brown strain of the common button mushroom (Agaricus bisporus). Portobello mushrooms are distinguished by their large size, thick cap and stem, and a distinctive musky smell. Because of their size - and the thickness of their fleshy caps - these mushrooms can be cooked in a range of different ways, including grilling and frying. Wikipedia does not have an article with this exact name. ... Binomial name Agaricus bisporus The button mushroom, also called the white mushroom, common mushroom, cultivated mushroom, and called champignon de Paris in France, is is one of the most widely cultivated mushrooms in the world. ... Binomial name Agaricus bisporus The button mushroom, also called the white mushroom, common mushroom, cultivated mushroom, and called champignon de Paris in France, is is one of the most widely cultivated mushrooms in the world. ...

Although sometimes described a sub-variety of the portobello mushroom, the crimini or cremini mushroom is actually an immature portobello. In fact, savvy marketers have begun to refer to crimini mushrooms as baby portobellos. Left to grow another 48 to 72 hours, a crimini mushroom will more than quadruple in size, taking on the more familiar large-capped portobello shape.