Plant Notes: Heartleaf Arnica
Easy to identify and common throughout the western United States and Canada, Heartleaf Arnica is a bright spot in the forest with its yellow, 1-2 inch sunflower-like blooms from May to August. Called an inflorescence, the golden blossoms consist of 8-15 yellow ray flowers with pointed tips and a cluster of disk flowers in the center.
Source: cdapress.com
