Definition of empress tree in English:

empress tree

noun

  • A fast-growing paulownia widely grown as an ornamental in the US and now considered an ecological threat, in light of its prolific growth and reproductive capacity.

    paulownia tomentosa, family Scrophulariaceae

    ‘Overall rankings for tree-of heaven [Ailanthus altissima Swingle] and empress tree [Paulownia tomentosa (Thunb.)’