Formerly known as Clavaria purpurea, it has been moved to its own genus as a result of phylogenetic analysis.

[1] The fruiting body of Alloclavaria purpurea is made of numerous slender cylindrical spindles that may grow to a height of 12 centimetres (4+3⁄4 in), with individual spindles being 2–6 millimeters thick.

[3] Similar species include Clavaria fumosa and C. zollingeri.

[3] Fruit bodies are found in spruce-fir forests.

[4] It can be found from October to December on the West Coast of North America, and July–October further inland.