This species is native to North America north of Mexico.
Allergenicity: Gray Oak (Quercus Grisea) is a severe allergen.
Pollination: Occurs in following seasons depending on latitude and elevation: Spring.
Angiosperm - Flowering Dicot: Plants in this group have two embryonic leaves (dicotyledons). Examples of dicotyledons are beans, buttercups, oaks, sunflowers, etc.
Shrub: A woody plant smaller than a tree, and usually with several stems from the same root.
Tree: A large plant, not exactly defined, but typically over four meters in height, a single trunk which grows in girth with age and branches (which also grow in circumference with age).
Perennial: Living for many years.
Evergreen: Retaining leaves throughout the year including changing seasons.
The shaded areas on the map to the left indicate where the species 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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