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MUSHROOMS

Cedar-Hawthorn Rust

Gymnosporangium globosum

Mushrooms
Cedar-Hawthorn Rust, photo 1 of 5
Cedar-Hawthorn Rust, photo 2 of 5
Cedar-Hawthorn Rust, photo 3 of 5

Assisted identification only. Never eat anything without an expert’s confirmation.

Fungus. Feeds on a living host, at its expense.

There are 8 observations of Cedar-Hawthorn Rust in Québec, mostly in Capitale-Nationale, Laval and Laurentides, and it has been reported in 7 of the 17 regions. They peak in August and become rare from October to May.

Through the year

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Where to see it

  1. Capitale-Nationale2
  2. Laval1
  3. Laurentides1
  4. Montérégie1
  5. Bas-Saint-Laurent1
  6. Estrie1
  7. Montréal1

Taxonomy

KingdomFungiPhylumBasidiomycotaClassPucciniomycetesOrderPuccinialesFamilyGymnosporangiaceaeGenusGymnosporangium

Grows on

Scarlet hawthornCrataegus coccinea
Eastern red-cedarJuniperus virginiana
European crab appleMalus sylvestris
PearPyrus communis
American mountain-ashSorbus americana
Dotted hawthornCrataegus punctata
Creeping juniperJuniperus horizontalis
Southern crab appleMalus angustifolia
Bush hawthornCrataegus crus-galli
Common juniperJuniperus communis
Siberian crabappleMalus baccata
Downy hawthornCrataegus mollis

Similar species

Cedar-apple rustGymnosporangium juniperi-virginianae
Cedar quince rustGymnosporangium clavipes
Tongues Of FireGymnosporangium clavariiforme
Mountain ash juniper rustGymnosporangium cornutum
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