Name: Zanthoxylum rhetsa (Roxb.) DC
- Common name: Indian prickly ash
- Vernacular name: Onger
- Family: Rutaceae
- Habit: Deciduous Tree. Height, 30.00 m.
- Habitat: Evergreen and moist deciduous forests, also in the plains
- Flower: March–May
- Fruiting : July–August.
- Parts used: Fruits,seeds,Stem and root bark
- Distribution: Arunachal Pradesh, Nagaland.Found at moist forests of lower Assam and in foot hills of Himalaya in northern bank.
- Uses: Used for the treatment of dental caries, dizziness and bloating,malaria, urinary diseases, rheumatism,diuretic,stomach ache and diarrhea
