Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Sapindales
Family: Rutaceae
Subfamily: Rutoideae
Genus: Choisya
Species: C. ternata
Binomial name: Choisya ternata
Synonyms: Choisya grandiflora, Juliania caryophillata
Common names: Mexican orange blossom, Mexican orange, Choisya, Choisya Mexican Orange Blossom

Choisya ternata is a rounded, medium-sized, bushy, evergreen shrub native to Mexico. It grows up to 3 m in height. It has dark, glossy, green leaves that are aromatic. They are divided into three leaflets. This shrub is a member of the Rutaceae family whose leaves frequently aromatic with glands on the leaves. Choisya ternata leaves are covered in these pellucid glands that are responsible for their aromatic smell. 
Fragrant star-shaped white flowers appear in spring that into summer.

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Closeup of a leaf. 
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Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/