Willow Velvet Shank
Flammulina elastica is a winter-fruiting velvet shank that grows in clusters on diseased willows and occasionally poplars. It looks like Flammulina velutipes but usually has a paler yellowish cap, and its spores are longer and narrower. Some collections can only be told apart with microscopy or DNA. It is rarely recorded and has probably been overlooked as F. velutipes.
Edibility is not specifically documented. It is a close relative of edible F. velutipes but rarely collected. Deadly Galerina species also grow on wood in cool seasons; Galerina has a brown spore print and a ring zone, while Flammulina has a white print and a velvety stem.
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Mycology is an evolving science: names, classifications and safety information change as research advances. Entries are compiled from cited sources and reviewed, but may be incomplete or out of date — check the sources, and never rely on this library alone to identify or eat a mushroom.