What are the main differences between Paulownia tomentosa and Paulownia fortunei ?

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Ori Fragman-Sapir

tomentosa has darker violet flowers and fortunei has light pinkish flowers

Şevket Alp

I submitted an article to you. Is there any progress on the subject

Jean-Marc Dufour-Dror

Hi Sevket, I do not know about any paper you have sent to me recently. Was it via ResearchGate ?

Thanks