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Black Walnut

Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to central and eastern North America, growing mostly in riparian zones.

From Wikipedia, licensed under CC BY-SA 4.0

Research Mentions

PubMed → · research article

CO2 boosts tree growth less reliably when crops share the space

Black walnut trees planted alongside your vegetable rows or pasture will respond to rising CO2 di...

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Taxonomy

Scientific: Juglans nigra
Kingdom: Plantae
Hardiness: Zone 4
Habit: tree
Bloom: Late Spring