Basic Introduction to Herbaceous Plants
Today's topic is about the introduction to herbaceous flowers, the basic introduction to herbaceous plants, followed by sharing the detailed content.
Definition of herbaceous plants: The stems of flowers, with underdeveloped xylem, have weak supporting power, and are called herbaceous stems. Flowers with herbaceous stems are called herbaceous flowers. Among herbaceous flowers, they can be divided into annual, biennial, and perennial types according to their different growth periods.
(1) Annual Herbaceous Flowers
They have a life span within one year, sown in the first year, bloom and bear fruit in the same year, and die in the same year. For example, scarlet sage, thistle, and Portulaca grandiflora (common Purslane).
(2) Biennial Herbaceous Flowers
They have a life span that spans two years, usually sown in autumn, bloom and bear fruit in the following spring and summer until they die. For example, snapdragon, marigold, and tricolor viola.
(3) Perennial Herbaceous Flowers
They have a life span of more than two years. Their common feature is that they all have a permanent underground part (underground roots, underground stems) and are alive throughout the year. However, their above-ground parts (stems, leaves) exist in two types: some maintain evergreen throughout the year, such as Asparagus setaceus, Begonia semperflorens, and Euphorbia milii; others regenerate new buds from the underground rootstock every spring, grow into plants, and die in winter. For example, Paeonia lactiflora, Canna indica, Dahlia, Iris, Hosta, and tuberose.
Perennial herbaceous flowers are collectively called rhizomatous flowers because their underground parts always maintain vitality.
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