Sunflowers, also known as yellow coconuts and Zi Kui. Latin scientific name: Chrysalidocarpus lutescens, a tufted evergreen shrub or small tree of Palmae and Solanum. The stems are smooth, yellow-green, and have no burrs. When tender, it is covered with wax powder, with obvious leaf marks and annual rings. The leaf surface is smooth and slender, pinnately divided, 40 ~ 150 cm long, with slightly curved petiole and soft apex. Sexual preference for warm and humid, semi-cloudy, well-ventilated environment, fear of cold, weak cold resistance, indoor decoration with potted young trees; Originally from Madagascar, Africa, it is now widely cultivated in some garden units in southern China; It has related curative effects on hematemesis, hemoptysis, hematochezia and metrorrhagia.