Paulownia fortunei (Seem.) Hemsl., Gard. Chron., ser. 3 7: 448 448 1890. (Syn: Campsis fortunei Seem. (unresolved); Paulownia duclouxii Dode; Paulownia meridionalis Dode; Paulownia mikado T. Itô);
China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi,
Sichuan, Yunnan, Zhejiang, Hebei (I), Henan (I), Shaanxi (I), Shandong (I)),
Taiwan, Laos, Vietnam, Myanmar [Burma]
as per Catalogue of life;
Keys in Flora of China are as below:
4 (1) Capsule oblong to oblong-ellipsoid, 6-10 cm; pericarp woody, 3-6 mm; inflorescences subcylindric; corolla ventral plaits inconspicuous; calyx 2-2.5 cm   4 Paulownia fortunei
+ Capsule ovoid, ovoid-ellipsoid, or ellipsoid, 3-5.5 cm; pericarp not woody, to 3 mm; inflorescences pyramidal or narrowly conical; corolla ventral plaits conspicuous; calyx to 2 cm.   (5)
       
5 (4) Capsule viscid-glandular hairy; calyx lobes as long as or longer than tube, not glabrescent   1 Paulownia tomentosa
+ Capsule pubescent when young; calyx lobes shorter than tube, partly glabrescent.   (6)


 
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