piperaceous
/pɪpəˈreɪʃəs/adjective
Botany. Of or relating to the family Piperaceae (the pepper family), comprising chiefly tropical, often aromatic, herbaceous plants, shrubs, lianas, and small trees, many of which provide products used as pungent spices.
Origin
Late 17th century (in an earlier sense). In sense 1 from classical Latin piper pepper + -aceous.