Coleosporium tussilaginis

Coleosporium tussilaginis is a rust fungus that infects pines.

Do not confuse with:
Chrysomyxa spp – another rust fungus

recognize Coleosporium tussilaginis on herbaceous plants
Coleosporium tussilaginis on bellflower (Campanula), photo: Björn S. - CC BY-SA 2.0
recognize Coleosporium tussilaginis on pinus sylvestris
Coleosporium tussilaginis, photo: Beentree - CC BY-SA 4.0

Coleosporium tussilaginis. This rust fungus infects pines – however, only on pines whose needles are in pairs (two-ranked). Among others, Pinus sylvestris and Pinus mugo. Vesicles with orange-colored spores form on the needles.
In addition to the pines, these spores can infect herbaceous plants in the immediate vicinity, such as Ligulariaand bellflower Campanula. Orange-colored fungal globules form on the undersides of the leaves of these herbaceous plants. Daisies (Chrysanthemum) and Ismelia can also be infected by a form of Coleosporium tussilaginis. The fungus Coleosporium has a few species, each plant susceptible to rust has its “own” variation.
A second fungus can develop on Coleosporium: it parasitizes on the already emerging fungus.

Where to find

  • Pine (Pinus)
  • (Ligularia)
  • Bellflower (Campanula)
  • Daisies (Chrysanthemum)
  • Ismelia


Remove affected branches and leaves (herbaceous).


Prevent damage to herbaceous plants near pines: make sure the wind has free rein near pines.

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