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Common Allergy Triggers in Arizona
Common Name: Spurge (Chamaesyce hirta)
Scientific Name: Chamaesyce hirta
Photo Courtesy of Alan W. Meerow Ph.D.
Photo Courtesy of Mary Jelks M.D.
| Habitat: | Disturbed areas |
|---|---|
| Range: | Southern states, Puerto Rico, Hawaii |
| Season: | All year |
| Type: | Annual herb |
| Characteristics: | Stems often prostrate, hairy, with milky sap |
| Leaves: | Opposite, simple, 5-1" long, elliptic, often blotched red, toothed along margin |
| Flowers: | Inconspicuous, tiny, in head-like clusters |
| Flowering Season: | All year |
| Fruits: | Tiny, splitting into 3, 1-seeded segments |
| Allergenic Components: | Milky juice in all parts |
| Allergenic Properties: | Dermatological |
| Comments: | The milky juice of this weedy herb causes skin irritation in sensitive individuals.Suspected of causing sickness to cows in Australia. May have toxicity similar to Euphorbia spp. |
Arizona Allergen Index | National Map
*Data Courtesy of Betrock Information Systems
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