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2,534 species in Wells Gray Provincial Park
Sorbus aucuparia
Sparganium hyperboreum
Spathularia flavida
Sphaerulina populicola
Sphagnum compactum
Sphagnum divinum
Sphagnum lindbergii
Sphagnum quinquefarium
Sphagnum recurvum
Sphagnum riparium
Spilosoma congrua
Spilosoma virginica
Stellaria calycantha
Stellaria sitchana
Stemonitis splendens
Stenocybe pullatula
Stenopogon inquinatus
Stereocaulon botryosum
Stereocaulon coniophyllum
Stereocaulon intermedium
Stereocaulon nanodes
Stereocaulon spathuliferum
Stereocaulon vesuvianum
Sterna hirundo
Sthenopis purpurascens
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