Characteristics of osmanthus fragrans

1, growth habit of Lagerstroemia indica: Lagerstroemia indica likes warm and humid climate, light, slightly shade-tolerant, fat and beautiful, especially the deep and fertile sandy loam soil, which is beneficial to being born in a slightly humid place, drought-resistant and waterlogging-resistant, and avoids being planted in a low-humidity place with high groundwater level. It is warm, cold-resistant and strong in germination. Lagerstroemia indica also has strong anti-pollution ability and strong resistance to sulfur dioxide, hydrogen fluoride and chlorine. Semi-shady, like to be born in fertile and humid soil, but also drought-tolerant, calcareous soil and acidic soil grow well.

2. Morphological characteristics of Lagerstroemia indica: Lagerstroemia indica is a deciduous shrub or small tree, with a height of 7 meters; Bark is smooth, gray or grayish brown; Branches twisted, branchlets slender, 4-angled, slightly winged. Leaves alternate or sometimes opposite, papery, oval, broadly oblong or obovate, 2.5-7cm long and 65438 0.5-4cm wide, short or blunt at the top, sometimes slightly concave, broadly wedge-shaped or nearly round at the base, hairless or puberulent below the midvein, with 3-7 pairs of lateral veins and no obvious veinlets; Sessile or petiole very short. Colors are rose red, scarlet, dark pink, reddish or purple, white, 3-4 cm in diameter, often forming a terminal panicle of 7-20 cm; Pedicel 3- 15 mm long, axis and pedicel pilose; The calyx is 7- 10 mm long, and the exterior is smooth without edges, but when it is fresh, the edge of the calyx tube is short, with microprotrusions, hairless on both sides, and the lobes are 6, triangular, upright and without appendages; Petals 6, shriveled, long 12-20 mm, with long claws; Stamens 36-42, 6 are inserted on the calyx outside, much longer than others; Ovary 3-6-loculed, glabrous. The capsule is ovoid, spherical or broadly elliptic, with a length of 1- 1.3 cm, green to yellow when it is young, purple-black when it is mature or dry, and its ventral part is cracked. Seeds winged, ca. The flowering period is from June to September, and the fruiting period is from September to June.

3. Green utilization of Lagerstroemia indica: Lagerstroemia indica has bright color, long flowering period and long life, and the tree age can reach 200 years. Lagerstroemia indica, as an excellent ornamental tree species, is widely used in park greening, courtyard greening, road greening, block cities and so on. In practical application, it can be planted in front of buildings, courtyards, Chi Pan, rivers, lawns and on both sides of park paths. It is also a good material for making bonsai.