About Suillus grevillei (Klotzsch) Singer
Suillus grevillei is a mushroom that produces a cap 5–10 cm (2–4 in) wide. The cap ranges in color from citrus yellow to burnt orange. It starts as a hemispherical shape, becomes bell-shaped as it matures, and finally flattens out. The cap has a sticky outer skin, and veil remnants often remain attached to its margin. Yellow short tubes extend down the full length of the mushroom's cylindrical stalk; the tubes may develop brownish discoloration when bruised or handled. The stalk measures 6–10 cm long by 1–2 cm thick. It is yellowish in the area above the ring, and marked with reddish brown streaks below the ring. The mushroom's flesh is yellow, and turns brown when cut or damaged. Its taste ranges from mild to slightly astringent to somewhat bitter. It has no distinct odor, or a faint somewhat metallic odor. This species grows exclusively under larch trees. It is widespread across North America and Europe, where it can be found from July to November. It has also been recorded growing in Taiwan, Asia.
