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Fraxinus mandshurica Rupr.Release date:2021-12-09

Fraxinus mandshurica Rupr. (scientific name: Fraxinus mandshurica Rupr.) is a large deciduous tree in the Oleaceae family, which can reach 30 meters in height, with thick bark, gray-brown, large winter buds, conical shape, strong branchlets, quadrangular prisms, and leaf scars. Shape uplift, semicircular. Pinnate compound leaves; petioles swollen near the base, leaf inserts are articulated, papery, leaf blades are oblong to ovoid, leaf margins are serrated, dark green on the top, yellow-green below, panicles born last year On raw branches, first leaves open, peduncle and branches with narrow wing-like sharp edges; male flowers and bisexual flowers are different, neither corolla nor calyx; male inflorescences are compact, pedicels are thin, anthers are oval, filaments are very short, and seeds The room is flat and wide, and the samara is large and flat. It blooms in April and bears fruit from August to September.
Distributed in Northeast China, North China, Shaanxi, Gansu, Hubei and other provinces. It is born in the hillsides with an altitude of 700-2100 meters in the sparse forests or in the gentle mountainous areas of the river valleys. North Korea, Russia, and Japan are also distributed.

Tertiary relic species of Fraxinus mandshurica. Walnut tree and yellow pineapple are known as the "three hard and broad tree species" precious in Northeast China. Their wood is hard and dense, with beautiful textures, and is a high-grade material for industry and civil use.

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