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Hercules'-Club, Prickly-Ash, Toothachetree (Zanthoxylum)

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Hercules'-Club, Prickly-Ash, Toothachetree Genus Details

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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

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Considered a potential localized allergenic plant only where it is abundant.

Hercules'-Club, Prickly-Ash, Toothachetree Pollen Description

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No pollen description is currently available.

Species in This Genus

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Allergenicity Legend:
Mild Allergen Mild Allergen  |  Moderate Allergen Moderate Allergen  |  Severe Allergen Severe Allergen  |  Allergy Test Allergy Test Available
Hercules'-Club, Prickly-Ash, Toothachetree (Zanthoxylum) is a genus of the RUTACEAE family.
This genus includes the following allergenic species:

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Hercules'-Club, Prickly-Ash, Toothachetree Genus Location

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The shaded areas on the map indicates where the genus has been observed in the United States. Click the map to see a full scale version of these allergy areas.
  - Native, observed in a county
  - Introduced, observed in a county
  - Rarely observed

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