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Accession Number 68764 Scientific Name Arnica cordifolia Hook. View Species Details » Common Name heart-leaved arnica Family Asteraceae Collected By McCalla, William C. View People Details » Date Collected 1938-08-19 Collector Number 05201 Place Collected North America: United States, Washington, Mount Rainier National Park, Mount Rainier Place Collected Details In heavy shade, almost entirely beneath the branches of a dwarf Alpine fir, steep slope on east side of Mt. Rainier, alt. 6500ft. Latitude 46.851993 Longitude -121.758478 Max Uncertainty Estimate (km) 8.03