Elm oyster
Hypsizygus ulmarius
A species of Hypsizygus. Also known as Elm mushroom.
As its common name implies, the elm oyster mushroom (Hypsizygus ulmarius) is typically observed growing on elm trees. Its scientific designation alludes to its characteristic habit of emerging high up on individual trees. The fruiting bodies can appear singly or in small groups of two or three, and seldom in larger aggregations.
In This Article
Attributes of Elm oyster
Cap Diameter
5 - 30 cm
Height
10 - 20 cm
Cap
Cap 6 - 30 cm across; convex to flat; white to yellowish; surface smooth
Cap Shape
Convex
Cap Surfaces
Smooth
Gills
Adnate, shortly decurrent; crowded; white to cream to pale ocher
Gill Attachment
Attached
Stem
Stem 6 - 13 cm long, 2 - 3 cm thick; white to yellowish; surface smooth
Stem Shapes
Cylindrical
Stem Surfaces
Fibrillose
Flesh
Firm; white
Ring
Ringless
Spore Print Color
White to buff
Odor
Faintly earthy, not particularly distinct.
Body Color
YellowWhite
Flesh Bruises
The flesh or milk does not discolor when bruised or cut.
Growth Form
Clustered
Nutrient Gathering
Saprophytic, Parasitic
Substrate
Wood of Living Trees, Dead Woods
You can find Elm oyster by these plants
Elms, Sorbus, Wych elm
Occurence Habitats
Deciduous Woodland
Species Status
Widespread but rather uncommon
Endangered Species
No
Scientific Classification of Elm oyster
Phylum
Club fungi
Class
Mushroom-forming fungi
Order
Gilled fungi
Family
Lyophyllaceae
Genus
Hypsizygus
Toxicity and Edibility of Elm oyster
Is Elm oyster Toxic?
Toxicity information is not available for this mushroom. Always consult with an expert before consuming any wild mushrooms.
