What are the concepts of woody, root, and herb among plants?

Herbs:

Shorter plants, including monocotyledonous and some dicotyledonous plants, have underdeveloped cambium in their stems, so the stems will not become thicker, but they are flexible. , called herbaceous stems, and plants with herbaceous stems are called herbaceous plants. The xylem in the stems of herbaceous plants is underdeveloped and is herbaceous. The stems and branches are soft and the plant is small. Generally, they are annual, biennial or perennial plants. Most of them die at the end of the growing season, including annual and biennial herbaceous plants, such as rice, radish, etc. The above-ground parts of perennial herbaceous plants die every year, while the roots, rhizomes and bulbs of the underground parts can live for many years, such as geraniums, etc.

Woody plants:

Have obvious secondary The phenomenon of step growth, which makes the stems thicker and thicker, is called woody stems; plants with woody stems are called woody plants. There is a vascular bundle cambium in the vascular bundles of woody plants. The cells in the cambium have the ability to grow and produce new xylem inward and new phloem outward every year, making the stems thicker year by year. However, more xylem is proliferated than phloem every year, and the older phloem will be squeezed, died and peeled off by the new xylem and phloem. Therefore, the proliferation of phloem is often not obvious, but the xylem becomes thicker year by year. The so-called wood, that is, Refers to the xylem.

Another "essential plant" was not found! !

P.S: My answers all come from Baidu’s internal answers (one is a standard answer, the other is a good answer to a question that is still being asked), but I have slightly changed it! ;)

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