Boletus pallidus

a fungus that has an off-white cap when it is young but later becomes dingy brown and a stalk of the same color; the under surface of the cap (the tubes) a pale greenish yellow

若いときはオフホワイトだが後にくすんだ褐色になる傘と、同色の柄を持つ菌類；傘の下面（管孔）は淡い緑黄色