When it was published in 2000, the Flora of Mount Rainier National Park included 871 species. Additional exploration has increased the number to 902. About half of the "new" plants are non-native species and many of the rest are part of a unique assemblage found on the ridgeline of Crystal Mountain, where they occur just within the Park boundary. These latter are plants more commonly seen at lower elevations to the east of the Cascade Crest and include Utah honeysuckle, silky lupine, and sulfur buckwheat. Non-native plants are indicated on this list with an asterisk.