Snowy flowers; it's one of the last to get to flower in autumn, and doesn't always manage to produce seed. Annala, Helsinki, Finland. Wild. 2004-11-21.
Ratibida pinnata (Vent.) Barnh. Engl.: pinnate prairie coneflower, prairie coneflower, grey-head coneflower. Suom.: preeriakeltahattu. Sven.: stor mexikohatt. Bot. syn.: Rudbeckia pinnata Vent.
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