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Elm Leech

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An uncommon fungus occasionally seen on oak, beech, poplar and horse chestnut.


Hypsizgus ulmaris: the elm leech fungus

Post date: Sunday, 11 December, 2016 - 21:32

You can see fungi growing out of dead wood in just about any woodland setting but to see one growing out of the side of what appears to be a living tree is most unusual. The elm leech (Hypsizgus ulmaris) is an uncommon fungus that was widely reported during the Dutch Elm Disease epidemic in the 1970's on dying elm trees but it can now occasionally be seen on oak, poplar and horse chestnut. It is not a species that kills trees but one that soon gets established in a dying tree.

It grows in small tufts but quite often in several groups on the same tree and appears in autumn. It can be eaten; the flesh is white but tough so probably not worth it.


The records for this species have been organised into reports, charts, maps and photos. Click a pic below to see the detail:

Sites List Distribution Map Some Charts Some Photographs Original Tweets Relatives Guidance Notes
Common Name Elm Leech
Scientific Name Hypsizgus ulmaris
Interest Level
Species Family Tricholoma Fungi (Various)
Preferred Environment
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Additional Identification Notes
Similar Species