Slimy Spike Cap

The edible and common Gomphidius smithii differs in that it is smaller (3-6 cm broad) and the lower part of the stem does not have bright yellow flesh, except sometimes at the extreme end. The edible but less common Gomphidius largus is sometimes considered a variety of this species. It differs in being larger (up to 20 cm broad). The edible but poor-tasting Gomphidius oregonensis differs in that the cap is dingy salmon in color and it grows in clusters where the stems are fused at the base.

See also the edible Gomphidius subroseus.