Bur Oak
Quercus macrocarpa
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Description
Bur Oak, or Quercus macrocarpa, is a large deciduous tree native to North America, particularly found in the central and eastern United States and parts of Canada. It can reach impressive heights of up to 30 meters and widths of up to 15 meters. The tree is characterized by its thick, corky bark and large lobed leaves. In agroecology and regenerative agriculture, Bur Oak plays a crucial role as a keystone species, supporting diverse ecosystems by providing habitat and food for wildlife, including birds and mammals. Its deep root system helps prevent soil erosion and improve soil structure. Bur Oak is also drought-tolerant, making it a resilient choice for natural farming systems. Historically, it has been used by Indigenous peoples for food and medicine. In a food forest, it serves as an overstory layer, providing shade and shelter for understory plants. Guild companions include nitrogen-fixing plants like clover and understory shrubs such as hazelnuts.
Growing Details
Bur Oak grows best in well-drained soils and full sun. It is tolerant of drought and can thrive in a range of soil types, including clay and loam. For optimal growth, prepare the soil by incorporating organic matter and mulching around the base to retain moisture and suppress weeds. Companion plants include clover for nitrogen fixation and hazelnuts for understory growth. Common beginner mistakes include overwatering and planting in poorly drained soils. Harvest acorns in the fall, and store the
Tags
Keystone Specie
Carbon Farming
Attracts Wildlife
Fire Wood
Building Wood
Windbreak
Erosion Preventing
Bee Friendly
Visual Appeal
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Quercus macrocarpa</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to central and eastern North America
applicable geo region: North America
language used: en
Flowering:
beginning
of May for 30 days
Harvest:
beginning
of September for 60 days
Seed Start:
?
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(3/5)
edible uses: The acorns of the Bur Oak can be processed and used as a food source. They need to be leached to remove tannins before consumption. Once processed, they can be ground into flour or used as a nutty addition to various dishes. Acorns are typically harvested in the fall and can be stored in a cool, dry place for several months after drying.
Medicinal Rating:
(2/5)
medicinal uses: Traditionally, parts of the Bur Oak have been used in herbal medicine. The bark has astringent properties and has been used in the treatment of diarrhea and wounds. It is important to consult with a healthcare professional before using it medicinally.
health concerns: Acorns contain tannins, which can be toxic if consumed in large quantities without proper processing. Ensure thorough leaching before consumption.
other uses: Bur Oak wood is valued for its strength and durability, making it suitable for construction and furniture. The tree also serves as a windbreak and provides shade, contributing to microclimate regulation in agroecological systems.
Scientific Literature
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Botanical data
specie: Quercus macrocarpa
common names: Bur Oak; Mossycup Oak; Mossycup White Oak
family: Fagaceae
sub family:
tribe:
sub tribe:
genus: Quercus
Growing Conditions
area needed: 100.0 m
spacing: 10.0 m
growing difficulty: Medium
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 20ยฐC / 15ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 0ยฐC / -30ยฐC / 35ยฐC
water demands: Medium
humidity:
light demands: High
root type: Deep
frost tender: Low
hardness:
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(4/10)
first harvest: 20 years
life span: 300 years
succession: Late
growth rate: Slow
max height: 30.0 m
max width: 15.0 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Monoecious
growth details: Bur Oak grows best in well-drained soils and full sun. It is tolerant of drought and can thrive in a range of soil types, including clay and loam. For optimal growth, prepare the soil by incorporating organic matter and mulching around the base to retain moisture and suppress weeds. Companion plants include clover for nitrogen fixation and hazelnuts for understory growth. Common beginner mistakes include overwatering and planting in poorly drained soils. Harvest acorns in the fall, and store the
Potential Disturbances: Common pests include oak wilt and gypsy moths. Natural pest management strategies include encouraging beneficial insects such as parasitic wasps to control caterpillar populations and planting companion plants like garlic to deter pests. Regular monitoring and management are recommended to prevent infestations.
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