Hercules'-Club, Prickly-Ash, Toothachetree (Zanthoxylum)
    Hercules'-Club, Prickly-Ash, Toothachetree Genus Details
    This plant, a member of the citrus family, is an aromatic shrub or small tree with a broad, rounded canopy. It grows to 10-13 feet tall and has thorns or prickles on the young branches. It is native from Quebec to Nebraska and Virginia.  The alternate leaves separate from one central area with 9-17 oval leaflets with toothed margins about 1-2 inches long. Flowering occurs during the winter months (December - February) in southern states and California. In the southeastern U.S., flowering occurs during March and during  April - May in the northeastern and north central states. The flowers are primarily insect-pollinated with pollen rarely becoming airborne.
    Hercules'-Club, Prickly-Ash, Toothachetree Allergy Info
    Considered a potential localized allergenic plant only where it is abundant.
    Hercules'-Club, Prickly-Ash, Toothachetree Pollen Description
    No pollen description is currently available.
    
    Species in This Genus
    
    Allergenicity Legend: 
        
 Mild Allergen  | 
        
 Moderate Allergen  | 
        
 Severe Allergen  | 
        
 Allergy Test Available
        
    
    Hercules'-Club, Prickly-Ash, Toothachetree (Zanthoxylum) is a genus of the RUTACEAE family.
This genus includes the following allergenic species:
    
    This genus includes the following allergenic species:
                    
                






 
                        
