Description
Robinia pseudoacacia (scientific name: Robinia pseudoacacia L.) is a plant of the legume family and the genus Robinia. Deciduous tree, 10-25 meters high; bark grayish brown to dark brown. Branchlets gray-brown, ridged, slightly hairy, and glabrous when young; with stipules, up to 2 cm long. The pinnate compound leaves are 10-25 (-40) cm long; the leaf shafts are covered with grooves. The raceme inflorescence is axillary, 10-20 cm long; bracts fall early; pedicel is 7-8 mm long; calyx is obliquely campanulate, style subulate, about 8 mm long, curved upward, apex hairy, stigma terminal. Pods are brown or reddish-brown markings, linear and oblong, 5-12 cm long, 1-1.3 (-1.7) cm wide, flat, apex curved; calyx persistent, with 2-15 seeds; seeds brown It is dark-brown, slightly shiny, and sometimes dappled, nearly kidney-shaped, 5-6 mm long and 3 mm wide, with a round hilum, leaning to one end. Flowering from April to June, fruiting from August to September.
Native to the United States. It is cultivated at 23°-46° north latitude and 86°-124° east longitude. Temperate tree species. It grows well in places where the annual average temperature is 8-14℃ and the annual rainfall is 500-900 mm.
Robinia pseudoacacia has a shallow and well-developed root system, is easy to wind down, and has strong adaptability. It is an excellent sand-fixing and soil-preserving tree species. As street trees, garden trees, landscape trees. It has certain resistance to sulfur dioxide, chlorine, chemical smog, etc., so it can be used for greening in heavily polluted areas such as factories and mining areas. The material is suitable for a variety of materials such as sleepers, vehicles, buildings, ore pillars, etc.; it grows fast and has strong budding power. It is a fast-growing firewood forest tree species; it is also an excellent nectar plant. Robinia pseudoacacia leaves are excellent feed for livestock and poultry. Proteins can be extracted directly from the leaves and used in the food and feed industries. Huafeng is a good source of nectar and spices. Pollen is used as a stomachic and tranquilizer in medicine. The seeds contain 12.0-13.9% oil. It is an important raw material for soap and paint; the bark fiber is strong and shiny, easy to bleach and dye, and contains tannins. It can be used as a raw material for papermaking, weaving and extracting tannin extract.
