picotee
noun
pic·o·tee ˌpi-kə-ˈtē 
: a flower (such as some carnations or tulips) having one basic color with a margin of another color
Example Sentences
Recent Examples on the Web Bloom season: Large showy white flowers with dark pink picotee edging in spring and summer. 
Debbie Arrington, sacbee.com, 23 June 2017
Debbie Arrington, sacbee.com, 23 June 2017 Word History
Etymology
French picoté pointed, from picoter to mark with points, from picot
First Known Use
1727, in the meaning defined above