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3,140 species in Grand Teton National Park
Senecio sphaerocephalus
Septoria polemonii
Sericomyia flagrans
Setophaga americana
Setophaga pensylvanica
Silene parryi
Sisymbrium altissimum
Smerinthus ophthalmica
Sphecodes arvensiformis
Staurothele areolata
Stretchia plusiaeformis
Strix varia
Suillus pseudobrevipes
Suillus umbonatus
Sympetrum corruptum
Sympetrum obtrusum
Synchytrium epilobii
Thalictrum fendleri
Tharsalea dorcas
Townsendia hookeri
Townsendia montana
Triantha occidentalis
Tricholoma aurantium
Triepeolus helianthi
Trimerotropis gracilis
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