五星花属（学名：Pentas）是茜草科下的一个属，为草本或亚灌木植物。该属共有50种，分布于热带地区。

Pentas is a genus of plants in the family Rubiaceae. The plants have hairy green leaves and clusters of flowers in shades of red, white, pink, and purple. Pentas are attractive to butterflies and hummingbirds. Some species are commonly cultivated and can be grown in pots and baskets. Species such as P. lanceolata can withstand full sunlight and need little to no care, growing even in locations that are dry and hot.