Cauliflower fungus; wood cauliflower.
Cedar, fir, larch, spruce.
Found growing at or out from the base of the tree – including from buried roots.
Annual. Soft and fleshy. Grows singularly or in groups to the size of a cauliflower head and adopts a similar morphology. Fronds are an orange-brown colour that pale promptly moving down into the fruiting mass. Flesh pale white-beige. Can be found torn apart / shredded by animals.
Grifola frondosa (found on broadleaved species).
Attributed to a cubical brown rot of wood. Has been associated with structural failure. When found, investigations into structural stability of the tree might be necessary. Hollowness investigations are not likely to yield informative results, due to the subterranean nature of the decay, in most instances. Where decay is considered to have progressed up the stem, hollowness investigations may however be undertaken and yield useful results.