Synonyms: Chinese-Pepper, Flatspine Prickly Ash, Szechuan Pepper.
Native to China and grown as an ornamental in the United States. The species may escape cultivation. It is not yet clear if this species is naturalized in Maryland. This page has been created to begin collecting relevant information.
Sichuan Pepper differs from our native Prickly Ash (Zanthoxylum americanum) in several ways. The most obvious is that Sichuan Pepper has a winged petiole and rachis while the native Prickly Ash does not. Additionally, Sichuan Pepper has a terminal inflorescence while Prickly Ash has axillary inflorescences (see Zhang & Hartley 2008, Fl. China 11: 53–66.; Weakley et al. 2012, Flora of Virginia).
There are 8 records in the project database.
| GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |
