Flowers have both broad and narrow definitions. In the narrow sense, they refer to herbaceous plants valued for their ornamental beauty, such as impatiens, chrysanthemums, cockscombs, and red flowers. Broadly speaking, flowers include all ornamental plants, whether herbaceous or woody, such as ground covers like Ophiopogon japonicus and Sedum, flowering shrubs like roses and camellias, and even trees like plum and peach. Additionally, certain tall trees and shrubs from warmer southern regions are cultivated in greenhouses in colder northern areas, such as white orchids, Indian rubber trees, and palms—these are also considered part of the broader concept of flowers.
The term "flower" has a long history. It first appeared in oracle bone inscriptions from the Shang Dynasty, where it represented the shape of a flower and its lush foliage. According to Han Shen Xu Shen’s *Shuo Wen Jie Zi*, "Hui" refers to the general name of grasses. The combination of "Hua" (flower) and "Hui" (grass) became more common later. During the Northern and Southern Dynasties, the text *Liang Shu He Dian Chuan* mentioned: “In the garden, loyalists were planted on the side of plaques,†which is one of the earliest references to the combined use of "Hua" and "Hui." However, this dual usage was rare in ancient Chinese literature. In Japan, influenced by Chinese horticultural texts, the word "flowers" appeared in *Beyin Yixuan's* *Flowers* in 1698 and gradually became a specialized gardening term after the mid-18th century. By the 1920s, the term was reintroduced to China from Japan and has been widely used ever since.
From a biological perspective, flowers are the reproductive structures of angiosperms, responsible for producing offspring. A typical flower consists of a short axis with a calyx, corolla, stamens, and pistils that generate reproductive cells. Some scientists argue that the sporophylls of gymnosperms can also be considered "flowers," but most define flowers specifically as the reproductive organs of flowering plants. The structure of a flower remains relatively stable and is not easily influenced by environmental factors, making it a key feature in classifying and identifying angiosperms. For centuries, botanists have relied heavily on floral morphology to study plant evolution and taxonomy.
Extrusion Tube,Pvc Tube Mold,Pvc Extension Tube,Pvc Flexible Tube
Wuxi Jierui Changkun New Material Technology Co., Ltd , https://www.plasticstrapsll.com