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1,555 species in Badlands National Park
Tachysphex mundus
Tachysphex psammobius
Tachytes distinctus
Tapinoma sessile
Taraxacum erythrospermum
Tetraopes tetrophthalmus
Thanatophilus lapponicus
Thomomys talpoides
Thyanta custator
Tomostima reptans
Townsendia exscapa
Trachyrhachys kiowa
Trachyrhinus favosus
Tragopogon porrifolius
Trifolium pratense
Trifolium repens
Trimerotropis salina
Triodanis perfoliata
Triops longicaudatus
Trupanea actinobola
Typha angustifolia
Ulmus rubra
Vanessa virginiensis
Verbena urticifolia
Verbesina encelioides
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