( lat. Acaena )

Kingdom: Plantae
Order: Rosales
Family: Rosaceae
Genus: Acaena

Plant Allergy Overview



Asthma Season

Winter Spring





Allergy Information

Pollen allergenicity is low to insignificant.

Genus Details

This member of the rose family is a shrub-like or perennial herb with partially woody stems. The single-stem plants are 4 to 28 inches tall with evergreen leaves. Leaves are unequally pinnate (feather-like) with inconspicuous flowers arranged in spikes with no petals. The flowers produce a single seed. Biddy-Biddy grows on open grassy slopes along the Pacific coast in California and Hawaii.

Asthma Description

Genus Distribution

The shaded areas on the map indicates where the genus has been observed in the United States.

- Native, observed in a county 
- Introduced, observed in a county 
- Rarely observed

Species in Plantain Genus

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