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Scientific Name:
Xanthoria spp.
Pronunciation:
zan-tho-REE-a
Common Name:
yellow lichen
Family Name:
Teloschistaceae
Plant Type:
Weed (horticultural)
Key ID Features:
A foliose lichen (a fungus with a green alga symbiont); commonly epiphytic on tree bark; thallose upper surface pale to bright orange, most 2-8cm wide, bearing orange spore forming apothecia that are <2mm wide.

Habit:
Spreading
Form:
Creeping / Mat-like
Texture:
Medium - fine
Mature Height:
< 0.1m
Mature Spread:
< 0.1m
Growth Rate:
Slow
Origin:
B.C. east of Cascades, B.C. west of Cascades
Hardiness Rating:
Zone 6: (-23 to -18 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Water Use:
Low
Landscape Uses:
Reclamation
Additional Info:
Google. Note: this is not a plant but rather a mutualistic symbiosis between a fungus, algae, and/ or cyanobacteria.

Leaf Morphology:
Form:
Lobed
Arrangement:
Texture/Venation:
Surfaces:
Colour in Summer:
Orange
Colour in Fall:
Orange
Shapes:
Oblong
Apices:
Rounded
Margins:
Palmately lobed
Additional Info:
Thallus loosely appressed to substrate

Inflorescence Type:
Flower Morphology:
Colour (petals):
No flowers
Flower Time at Peak:

Fruit Type:
Sporangium (spores)
Fruit Colour:
Orange
Fruiting Time:
May, Jun
Additional Info:
Apothecia (fruiting bodies)

Bark or Stem Colour:
Propagation:
Spore
Pest Susceptibility:
(Pest resistant, Disease resistant)

Course(s):
  • HORT 1155
Location(s):
  • (BCE)  Boulevard (Circular) Eastend : on light pole
  • (BKW)  Boulevard Kwantlen Way : on basalt
  • (BUG)  BUG garden : on Fraxinus
  • (TFL)  Turf Field Lab
Location Map