What is a wine glass flower? I believe everyone will regard it as a flower cultivated in a wine glass. It's actually wrong. A wine glass is a flower like a wine glass. So which countries do wine glasses mainly grow in? Let's introduce the growth habit and origin of wine cup flower. Small evergreen trees of Apocynaceae: a brief introduction to wine cup flowers. Also known as yellow flower champion bamboo and wine glass flower. Native to tropical America, it likes light, high temperature and humid climate, and is resistant to shade. Nerium indicum is a large evergreen shrub. Crown development. The branches are upright, smooth, clustered, angular and stout. Leaves lanceolate, usually 3-4 petals, middle and lower branches opposite, thick leathery, obvious veins. There is a little milk in the branches and leaves. Thymus terminal, corolla funnel-shaped, 5-lobed, petals wrinkled, lobes twisted to the right, pink to crimson, mostly double or semi-double. The flowering period is long, and it blooms from June to 65438+10. There are many kinds of gardening, such as white oleander and red oleander. Morphological characteristics: 2~5m tall shrubs or small trees, rich in milk. Leaves alternate, linear or narrowly lanceolate, long10 ~15cm, wide 6 ~12mm, bright and hairless, with edges slightly rolled back, sessile at the top, pointed or short conical, wedge-shaped at the base, mostly rolled back to the lower surface in a tubular or groove shape, with the upper surface dark green or grayish green and the lower surface yellow-green. Cymes are terminal; Calyx 5-parted; Corolla color, funnel-shaped, lobes 5, left-handed, throat with 5 scales; Stamens 5, inserted in the throat of corolla; Ovary 2-loculed, stigma discoid, disk yellow-green, 5-lobed. Yellow flowers bloom in autumn, fragrant, and cymes are terminal; Triangular spherical drupe, black when ripe, similar to peach, with emulsion oozing when cut dry. The fruit is oblate, triangular, 3-4 cm in diameter, pale yellow when mature, and contains 3-4 seeds. Seeds cultivated on both sides, hard. It blooms from June to 65438+February, and bears fruit from June165438+1October to February of the following year. Trees, up to 5 meters high, the whole plant is hairless; Branches are weak and branchlets droop. It is a common woody flower with many branches, dense leaves, green leaves, large and colorful flowers and long flowering period. Plants and fruits are poisonous. Leaves leathery, sessile, linear-lanceolate or linear, with a length of10-15cm and a width of 5-12mm, and sharp and shiny ends; Bilateral lateral veins are not obvious. Inflorescence terminal; Calyx lobes triangular, green; Corolla yellow, funnel-shaped; Stamens are inserted in the waiting part of the crown tube, and there are 5 scaly corollas in the waiting part; Ovary glabrous, stigma round, apex 2-lobed. The fruit is oblate, triangular and 2.5-4 cm in diameter. Endocarp is woody, bright green when fresh and black when dry. The ecological habit of wine glasses likes warm and humid climate. Like light, high temperature and humid climate, strong vitality, resistance to humidity, shade, wind and air pollution. Cold resistance is not strong, it can be planted in the open field south of the Yangtze River basin in China, but sometimes branches and leaves are frozen and withered, and even seedlings are frozen to death in Nanjing. In the north, you can only overwinter in potted plants and indoors. The cold resistance of white flower varieties is slightly stronger than that of safflower varieties. Nerium oleander is not resistant to water and humidity, so it should be planted in a place with high dryness and good drainage. The light of happiness is so fat. Can also adapt to cloudy environment, but planted in the shade, the flowers are few and pale. Strong germination, easy to recover after the tree is damaged. It grows on the roadside or in the yard, and the branches and leaves taken in autumn also have medicinal value.