Bur Oak

The Bur Oak tree, also known as the Mossycup Oak, is regarded as one of the most majestic oaks native to North America. The bur oak's scientific epithet, macrocarpa, means "large fruit" which references its large acorns. These acorns are an important food source for wildlife. These trees typically live 200 to 300 years, sometimes even reaching 400 years and grow from 70-100 feet in height!

Here is a link to the Phenophase Guide:

Bur Oak Phenophase Guide (1)

.pdf

Download PDF • 15.48MB

This is a graph of the Activity Curve for 2021:

Here is a Calendar of the Flowering Phenophase stage being observed for the Bur Oak in 2021.

The gray marks are times when the tree was observed and determined to not be presenting the phenophase.

Here is a Calendar of the Fruiting Phenophase stage being observed for the Bur Oak in 2021. The gray marks are times when the tree was observed and determined to not be presenting the phenophase.

Here is a Calendar of the Leafing Phenophase stage being observed for the Bur Oak in 2021. The gray marks are times when the tree was observed and determined to not be presenting the phenophase.

Number of Observations 2021: 1,561

Number of Observation sites 2021: 4

Number of Visits to Observation sites 2021: 77

Indiana Backyard Observer data downloaded using the USA-National Phenology Network's Phenology Observation Portal <www.usanpn.org/data/observational>

Map of Counties with Observation sites (2021)

Marion, Marshall, and Vanderburgh Counties