Madrone (Arbutus)
Madrone Genus Details
The Pacific madrone has been called one of the best broad-leaved evergreen trees. It is native from British Columbia to California and bears small white flowers like those of Vaccinium (blueberry) in pyramidal clusters of 3-9" tall and 6" broad during the month of May. The red to orange colored berries are displayed in the fall and winter, and it frequently grows in a picturesque shape. The old bark peels off, leaving the younger bright red to cinnamon bark underneath. The dark, glossy evergreen leaves are 2-6" long. Madrone can grow to 60" tall.
Madrone Allergy Info
The heath family, of which madrone is a member, has been infrequently reported as a source of pollen allergy.
Madrone Pollen Description
Pollen grains of Arbutus are united into tetrads. They are usually 3-colporate or indistinct. The furrows are distinct and transverse and the exine is psilate. The intine is thickened at the apertures.
Compared to other genera in this family, the tetrads of Arbutus are comparatively large (48-56 micrometers).
Species in This Genus
Allergenicity Legend:
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Madrone (Arbutus) is a genus of the ERICACEAE family.
This genus includes the following allergenic species:
This genus includes the following allergenic species:
