Naming
The species name "arbuscula" is Latin for the word "bush" or "shrub", which may be due to the fact that the lichen has branches that resemble a bush.C. arbuscula has 6 subspecies:⤷ ''Cladonia arbuscula'' subsp. ''arbuscula'' Flot.
⤷ ''Cladonia arbuscula'' subsp. ''beringiana'' Ahti
⤷ ''Cladonia arbuscula'' subsp. ''boliviana'' Ahti & De Priest
⤷ ''Cladonia arbuscula'' subsp. ''imshaugii'' Ahti & De Priest
⤷ ''Cladonia arbuscula'' subsp. ''mitis'' Ruoss
⤷ ''Cladonia arbuscula'' subsp. ''pachyderma'' Ahti & De Priest
Habitat
''Cladonia arbuscula'' is a known host species for the fungus ''Lichenopeltella cladoniarum''.References:
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