Inonotus ulmicola
VU

Inonotus ulmicola

Local name: almsprängticka

Unknown

Photo: iNaturalist: (c) raunay, some rights reserved (CC BY-NC), uploaded by raunay

Overview

Inonotus ulmicola, commonly known as almsprängticka, is a bracket fungus that forms distinctive woody, hoof-shaped fruiting bodies on elm trees. This parasitic species creates perennial conks with a dark, crusty exterior and rusty-brown pore surface underneath. It plays a crucial ecological role as both a tree pathogen and decomposer, contributing to forest nutrient cycling while creating habitat cavities used by various wildlife species.

Inonotus ulmicola faces significant threats primarily due to the widespread decline and disease of its host trees, particularly elm species affected by Dutch elm disease and other pathogens. Habitat fragmentation and loss of mature elm trees in both urban and natural environments have reduced available substrate for this specialized fungus. Climate change may further stress host trees and alter the environmental conditions necessary for successful fruiting and spore dispersal.

Threat summary

Habitat

This species occurs as a wood-decay fungus on elm trees (Ulmus species), typically found in deciduous and mixed forests, urban parks, and riparian woodlands where mature elm trees are present. It grows as a bracket fungus on living and dead elm wood, requiring specific moisture and temperature conditions for fruiting body development.

TERRESTRIAL· major

Frequently asked questions

Why is almsprängticka classified as Vulnerable?
almsprängticka is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Inonotus ulmicola faces significant threats primarily due to the widespread decline and disease of its host trees, particularly elm species affected by Dutch elm disease and other pathogens. Habitat fragmentation and loss of mature elm trees in both urban and natural environments have reduced available substrate for this specialized fungus. Climate change may further stress host trees and alter the environmental conditions necessary for successful fruiting and spore dispersal.
Where does almsprängticka live?
almsprängticka occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to almsprängticka?
The main threats to almsprängticka are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.