Dictionary.com
Thesaurus.com

shamrock-pea

American  
[sham-rok-pee] / ˈʃæm rɒkˌpi /

noun

  1. a trailing plant, Parochetus communis, of the legume family, native to Asia and east Africa, having shamrocklike leaves with a brown crescent at the base and pea-shaped, pink and blue flowers.


Etymology

Origin of shamrock-pea

First recorded in 1880–85