horizontal view of branches of a kiri paulownia tree in full bloom next to a lamp post n the castellana madrid spain

absorb alien species amounts applications atmosphere benefits blue sky carbon dioxide castellana chinese tree city botany co2 common cultivate deciduous empress environment friendly europe exotic fast growing fastgrowing foxglove foxglovetree greenery hardwood horizontal introduced invasive kiri lamp post lampost lamppost large logging naturalised paulownia tomentosa paulowniaceae pollution princess reforestation shoots sprout sustainable top branches valuable versatile white bloom