Royal King, - Royal Trumpet , King Eryngii  (Pleurotus eryngii)  can be found in the wild growing on the buried roots of hardwood trees or in Europe, from the base of wild carrots. A large, heavy, stout, thick fleshy, and unlike any other cultivated oyster mushroom and is not related to the black trumpet mushroom. Although quality varies, the dense bright-white stalks and creamy, concave tan caps are usually thick and solid. This mushroom grows in clusters up to 7 inches long but is generally harvested at a smaller size, which join at the base and not in overlapping caps like other oyster mushrooms.

It is sweet and meaty and often grows on the decaying roots of plants in the carrot family.  It is especially favored in France and Spain.