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Native Plant
Spiraea septentrionalis
Native Plant
Spergularia salina
Non-native Plant
Spiraea salicifolia
Non-native Plant
Spergularia rubra
Native Plant
Spiranthes romanzoffiana
Native Plant
Sporobolus pyramidatus
Non-native Plant
Spergularia purpurea
Native Plant
Spiraea ×pyramidata
Non-native Plant
Spondias purpurea
Native Plant
Sporobolus purpurascens
Native Plant
Spermacoce prostrata
Native Plant
Spiranthes praecox
Non-native Plant
Spiraea prunifolia
Native Plant
Spiranthes porrifolia
Native Plant
Spirodela polyrrhiza
Non-native Plant
Spergularia platensis
