Justicia championii T. Anderson, Fl. Hongk. 264 1861. (syn: Adhatoda chinensis (Benth.) Champ.; Calophanoides chinensis (Benth.) C.Y. Wu & H.S. Lo; Dicliptera cyclostegia Hand.-Mazz.; Ecbolium championii Kuntze; Justicia chinensis (Benth.) Druce (ambiguous synonym); Justicia chinensis (Benth.) Q.H.Chen (ambiguous synonym));  
China (Anhui, Zhejiang, Jiangxi, Fujian, Guangdong, Hongkong, Hainan, Guangxi,
Hunan, Hubei, Sichuan, Yunnan)
as per Catalogue of Life;

SK1421 08 Sep 2018 : 6 posts by 3 authors. Attachments (6)- around 500 kb each. 

Location: Victoria Peak, Hong Kong 
Date: 12 August 2018
Elevation: 1300 ft.
Habit : Wild
Justicia sp…??

This could be Justicia championii.

Justicia championii T. Anderson




Justicia championii T.Anderson ex Benth. ?? : 7 posts by 3 authors. Attachments (6)- around 650 kb each. 

Location: Victoria Peak, Hong Kong 
Date: 2 November 2018
Elevation: 1300 ft.
Habit : Wild

To me also appear close to images at Justicia championii 

Yes this should be Justicia championii. Native to Hong Kong.