| After our extend visit to Mammoths springs, we drove back via the Grand loop road section that nearly touches the Yellowstone river. We stopped at two locations, first at The Narrows, and then close to Mount Washburn. The Narrows gave beautiful views on a through-and-through volcanic landscape, while at Mount Washburn I found some late-flowering plants. |
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| Letharia vulpina & Usnea spec. |
| Deutsch | : | Wolfsflechte |
| Norsk | : | ulvelav |
| Svenska | : | varglav |
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| Mimulus lewisii |
| Authority | : | Pursh, 1813 |
| Synonyms | : | Erythranthe lewisii (Pursh) G.L.Nesom & N.S.Fraga, 2012 |
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| Potentilla arguta |
| Authority | : | Pursh, 1814 |
| Synonyms | : | Drymocallis arguta (Pursh) Rydb. 1898 |
| English | : | tall cinquefoil, white cinquefoil |
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| Castilleja rhexifolia |
| Authority | : | Rydberg, 1900 |
| English | : | splitleaf Indian paintbrush |
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