Arnica Cordifolia, or more commonly know as Heartleaf Arnica, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage and yellow flowers of the genus Arnica. It has a rapid growth rate and a height of 1.5 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during late spring, is tolerant of shade and is routinely available commercially. Arnica Cordifolia or Heartleaf Arnica's floral region is North America US Lower 48 and Alaska, specifically in the states of Alaska, Arizona, California, Colorado, Idaho, Michigan, Montana, North Dakota, New Mexico, Nevada, Oregon, South Dakota, Utah, Washington and Wyoming.
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