Allergy Information

This genus is not commonly cited as a source of allergy.

Genus Details

Heath-goldenrod is an acid soil plant originally from Europe. It has small but numerous evergreen leaves and prefers full sun. It blooms profusely with many small flowers.

Pollen Description

Baccharis pollen grains are oblate-spheroidal to prolate-spheroidal; the amb triangular, 3-4 lobate and 3-4 colporate. The sexine is generally thick, tectate, and has long spines. The intine is thin but slightly thickened below the apertures. Ericameria has pollen grains of the Baccharis-type.

The grains are typically 20-30 micrometers in diameter.

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