Member of
tarweeds and allies (tribe Madieae)
sunflower family (family Asteraceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)
There are no other wild species of this genus in the bay area.
heartleaf arnica
Arnica cordifolia
Toxicity of arnica (Arnica spp.):
1 – Skin contact with these plants can cause symptoms ranging from redness, itching, and rash to painful blisters like skin burns.
4 – Ingestion of these plants, especially in large amounts, is expected to cause serious effects to the heart, liver, kidneys or brain. If ingested in any amount, call the poison center immediately.
1 observed taxon / 1 unobserved taxon / 1 key
Locations: Months: For more details, use advanced search.
Chris’s observations: 2 (all are research grade)
Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA
Bay Area species: iNaturalist – Calflora
