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Definition of Hieracium aurantiacum
1. Noun. European hawkweed having flower heads with bright orange-red rays; a troublesome weed especially as naturalized in northeastern North America; sometimes placed in genus Hieracium.
Exact synonyms: Orange Hawkweed, Pilosella Aurantiaca
Group relationships: Genus Pilosella, Pilosella
Generic synonyms: Weed
Group relationships: Genus Pilosella, Pilosella
Generic synonyms: Weed