Ptilostemon diacantha

Ptilostemon diacantha (Labill.) Greuter. Engl.: ivory thistle. Deu.: Elfenbeindistel. Bot. syn.: Carduus diacanthus Labill., Chamaepeuce diacantha DC., Cirsium diacantha (Labill.) DC., Cnicus diacantha (Lab.) C. C. Gmel.

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