Little-leaf tree millettia
 
Little-leaf tree millettia
Millettia pulchra var. microphylla】,Leguminosae

It's unique to Taiwan. The plant has elliptic-lanceolate leaflets. The bell-like flowers are purple. When the fruits mature, they become dark brownish. Not only it can be the windbreak on the coast, but the foliage plant can beautify the garden and the potting.