Order: Laurales
Family: Lauraceae
General Overview: Black Walnut primarily thrives in mountainous broadleaf forests and limestone mountainous regions, distributed throughout Northwest China and areas south of the Yangtze River.
Morphological Features: Black Walnut is an evergreen deciduous tree characterized by alternate, leathery leaves that are lanceolate to broadly elliptical, with a glossy dark green upper surface and a paler green to whitish underside, exhibiting pinnate venation. The plant is dioecious, featuring male and female reproductive organs on separate individuals, with umbrella-shaped inflorescences bearing 9-16 flowers. The fruit is elliptical to ovoid, containing oval-shaped seeds.
Biological Characteristics: Black Walnut primarily thrives in mountainous broadleaf forests and limestone mountainous regions, distributed throughout Northwest China and areas south of the Yangtze River.
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