Willow trees are trees of the willow genus in the willow family. Branches are cylindrical in shape, with a nearly circular pith; No apical buds, lateral buds usually adhere closely to the branch, and bud scales are single; Leaves alternate, sparsely opposite, usually narrow and long, often lanceolate, feather veins, serrated or entire, petiole short, with supporting leaves, often serrated; The inflorescence of the hibiscus is upright or obliquely spread, with the bracts covering the entire edge, and the pistil composed of two carpels; The capsule is split into two petals; The seeds are small and often dark brown in color. The flowering period is from February to March, and the fruiting period is from March to April. The name of willow tree comes from its head wood working method. The result of the head tree homework is to preserve the trunk for continuous use of the branches, and the pronunciation of the word "willow" is the same as that of "liu", hence the name "willow tree".

Black poplar is a deciduous tree with a height of 30 meters; The tree crown is wide oval shaped. The bark is dark gray and cracks when old. Branches round, light yellow, hairless. The bud is ovate in shape, rich in mucilage, reddish brown in color, and the tip of the flower bud is curved outward. The flowering period is from April to May, and the fruiting period is in June. Black poplar naturally grows on riverbanks and river bays, and is rarely found on coastal sand dunes. Often formed into strips or patches of forest. Cold resistant, light loving, not tolerant to salt and alkali, not tolerant to drought, grows well on alluvial sandy soil. Produced in Xinjiang, China, it is distributed in northern China and northern Asia. The black poplar has a cylindrical crown, with a tall and upright tree shape and a graceful posture; Can be planted in clusters or rows on lawns, squares, schools, hospitals, and other places.

Black poplar is a deciduous tree with a height of 30 meters; The tree crown is wide oval shaped. The bark is dark gray and cracks when old. Branches round, light yellow, hairless. The bud is ovate in shape, rich in mucilage, reddish brown in color, and the tip of the flower bud is curved outward. The flowering period is from April to May, and the fruiting period is in June. Black poplar naturally grows on riverbanks and river bays, and is rarely found on coastal sand dunes. Often formed into strips or patches of forest. Cold resistant, light loving, not tolerant to salt and alkali, not tolerant to drought, grows well on alluvial sandy soil. Produced in Xinjiang, China, it is distributed in northern China and northern Asia. The black poplar has a cylindrical crown, with a tall and upright tree shape and a graceful posture; Can be planted in clusters or rows on lawns, squares, schools, hospitals, and other places.

Black poplar is a deciduous tree with a height of 30 meters; The tree crown is wide oval shaped. The bark is dark gray and cracks when old. Branches round, light yellow, hairless. The bud is ovate in shape, rich in mucilage, reddish brown in color, and the tip of the flower bud is curved outward. The flowering period is from April to May, and the fruiting period is in June. Black poplar naturally grows on riverbanks and river bays, and is rarely found on coastal sand dunes. Often formed into strips or patches of forest. Cold resistant, light loving, not tolerant to salt and alkali, not tolerant to drought, grows well on alluvial sandy soil. Produced in Xinjiang, China, it is distributed in northern China and northern Asia. The black poplar has a cylindrical crown, with a tall and upright tree shape and a graceful posture; Can be planted in clusters or rows on lawns, squares, schools, hospitals, and other places.

Populus pruinosa Schrenk is a small tree in the family Salicaceae, belonging to the genus Populus, with a height of up to 20 meters. Crown development; The bark is light grayish yellow; Cute branches densely covered with gray short hairs; The small branches have gray short hairs. Cute branches and leaves elliptical in shape, covered in gray hairs on both sides; Short branches and leaves kidney shaped, with sparse teeth on the entire edge or tip, gray blue on both sides, densely covered with short hairs; The petiole is slightly flattened on the side. The fruit stalk, stem, and capsule are all densely covered with short hairs. The capsule is oval in shape, blooms in May, and bears fruit from July to August.

Populus Euphratica Oliv. is a plant species belonging to the phylum Angiosperma, order Magnoliaceae, family Salicaceae, and genus Populus. It is a medium-sized natural deciduous tree with a diameter of up to 1.5 meters and wide, fragrant leaves. Drought and flood resistance, tenacious life, it is one of the rare tree species in nature. Poplar trees are 15-30 meters tall and generally 100-300 years old. The Populus euphratica in China is distributed in the desert and Gobi areas of the northwest region.

Willow trees are trees of the willow genus in the willow family. Branches are cylindrical in shape, with a nearly circular pith; No apical buds, lateral buds usually adhere closely to the branch, and bud scales are single; Leaves alternate, sparsely opposite, usually narrow and long, often lanceolate, feather veins, serrated or entire, petiole short, with supporting leaves, often serrated; The inflorescence of the hibiscus is upright or obliquely spread, with the bracts covering the entire edge, and the pistil composed of two carpels; The capsule is split into two petals; The seeds are small and often dark brown in color. The flowering period is from February to March, and the fruiting period is from March to April. The name of willow tree comes from its head wood working method. The result of the head tree homework is to preserve the trunk for continuous use of the branches, and the pronunciation of the word "willow" is the same as that of "liu", hence the name "willow tree".