About Leccinum insigne A.H.Sm., Thiers & Watling
Leccinum insigne, commonly called the aspen bolete or aspen scaber stalk, is a bolete fungus species belonging to the family Boletaceae. It was formally described as new to science in 1966. Its specific epithet insigne translates to "distinctive or outstanding". The cap of this species can grow up to 17 centimetres (6+3⁄4 inches) wide; it is orangish-brown and semi-fibrillose. The tubes are white to yellowish, and stain brownish when bruised, rather than blue. The stipe reaches up to 15 cm long, is white, and marked with dark scabers. The flesh is white, sometimes turning gray, and may show a bluish tint in the stipe base. The spore print of Leccinum insigne is tannish. This species is distributed in North America, with a range that extends from eastern Canada south to New Jersey and west to the northern Rocky Mountains. It is considered a good edible mushroom, but there are documented cases of adverse reactions ranging from headaches to gastrointestinal distress. It remains unclear whether these reactions are caused by food sensitivities alone.
