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2,321 species in Wrangell-St. Elias National Park
Selaginella selaginoides
Setophaga tigrina
Silene taimyrensis
Solorina crocea
Somatochlora hudsonica
Sphaerophorus fragilis
Sphagnum aongstroemii
Sphagnum balticum
Sphagnum palustre
Sphagnum warnstorfii
Streptopus amplexifolius
Swertia perennis
Sympetrum internum
Tetragnatha extensa
Tetraplodon angustatus
Tetrix subulata
Thripsaphis cyperi
Tiarella trifoliata
Timmia austriaca
Torreyochloa pallida
Trichodon trichodon
Trifolium pratense
Umbilicaria torrefacta
Vespula alascensis
Villa harveyi
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