Paulownia catalpifolia T. Gong ex D. Y. Hong

Trees; crown large and high. Trunk straight. Leaves often narrowly ovate-cordate, ca. 2 X as long as wide, abaxially densely stellate tomentose, adaxially glabrous, margin entire or undulate and angled, apex acuminate. Thyrses pyramidal or narrowly conical, usually less than 35 cm; cyme peduncle nearly as long as pedicels. Calyx shallowly campanulate, less than 2 cm, glabrescent after flowering; lobes 1/3-2/5 of calyx length, triangular to ovate. Corolla light purple, narrowly tubular-funnelform, 7-8 cm, less than 3.5 cm wide, ridged ventrally, inside with dense purple small spots, base curved forward; throat ca. 1.5 cm, apically less than 3.5 cm in diam. Capsule ellipsoid, 4.5-5.5 cm, stellate hairy when young; pericarp to 3 mm. Fl. Apr, fr. Jul-Aug.

* Low elevations. Shandong (Zou Xian).

Paulownia catalpifolia is a species of flowering plant in the family Paulowniaceae, native to Shandong province, China, and introduced to Hungary. An extremely fast-growing tree, it is cultivated in China for its timber.