Buckwheat has a short growth period and is suitable for planting in cold climate or somewhere.

Buckwheat has a short growth period and is suitable for planting in places with cold climate.

The growth period outside the wall is relatively short, which is suitable for cultivation and growth in very cold places and places rich in water resources.

A succulent plant means that at least one of the vegetative organs in the roots, stems and leaves of a plant is plump and juicy, and has the function of storing a large amount of water. Which has at least one fleshy tissue,

This kind of tissue is living tissue, which can store usable water among other functions. When the soil water content deteriorates and the plant roots can no longer absorb and provide the necessary water from the soil, plants can temporarily survive independently of the external water supply. Sometimes people like to call such plants desert plants or desert plants, which is not accurate. Many succulents do grow in desert areas.

(Including some plants of more than 50 families, such as Cactus, Annonaceae, Sedum, Euphorbiaceae, Apocynaceae, Asparagaceae, etc. ), but not all of them grow in the desert, and many plants that are not succulents also grow in the desert.

Due to long-term adaptation to arid environment, the vegetative organs of cactus and succulents have undergone great changes. The original leaves have degenerated into needle-like leaves in most cacti, and often only trace or fall off early in succulents of Euphorbiaceae.

However, it still exists in other succulents of most families, but it has been fleshed to varying degrees; In cactus, stem not only replaces leaves as the main organ of photosynthesis, but also has high ornamental value because of its variety. However, many succulents in other families have no stems or only short stems. In addition, cactus has unique organ thorns. Therefore, when describing the shape, cactus must be listed separately for easy description.

Aptenia creeping weeds in heart leaves

Water storage tissues are mainly in leaves. Stems are generally not fleshy, and some stems are slightly lignified. According to the different drought degree of habitat, the meat quality of leaves is also different. The leaves of native species in areas with low drought are bigger and thinner. For example, the origin of Amorphophallus konjac in natal province, South Africa is wetter than other places in South Africa, so the shape of Amorphophallus konjac has bigger and thinner leaves, and the plant shape is creeping.

The shape is not much different from ordinary grass flowers. As the environment tends to be dry, the stems of local succulents become shorter and shorter, and the leaves become thicker and thicker. However, in some apricot species distributed in extremely arid areas, the whole plant consists of only one or two pairs of leaves, the stems have all disappeared, and the leaves are highly fleshy.

* * * Same xerophytic structure

succulent

Due to the difference of families and genera, although the leaves of leafy succulents have the same xerophytic structure-leaf thickness, cuticle, ash quilt and so on. There are quite a few kinds of leaves. This diversified leaf shape is an important basis for classification. Most of them are simple leaves, but many of them are compound leaves.

The arrangement of leaves is alternate, opposite, alternate and opposite, rotation, two rows of overlapping cattle, clumping and so on. Leaves of species originating from high altitude are arranged in a rosette shape,

The whole plant is very compact, which is an ideal tree species for home cultivation and ornamental. A highly fleshy species of Apricot family, the whole plant often has only a pair of leaves connected to form a solution, which is spherical, oblate, gyro-shaped and ingot-shaped. Because there are many varieties and small plant shapes, succulents lovers in China collect "hot spots" for cultivation.

(1) Species with leaves account for a considerable proportion, such as succulents such as Apricot, Sedum and Lepidoptera. Among them, the special-shaped leaves of Apricot are the most representative.

② The characteristics of thorns are not as distinct as cactus. Many species, such as strong thorns but covered with leaves, stand out only when the leaves fall.

According to the different parts of water storage tissues in plants, succulents can be divided into three types: leaf succulents, stem succulents and stem succulents; But this classification is not a strict botanical classification.

There are three kinds of compound leaves, palmately compound leaves, once pinnate compound leaves and twice pinnate compound leaves. The shapes of single leaves are linear, thin cylindrical, spoon-shaped, oval, heart-shaped, sword-shaped, tongue-shaped and diamond-shaped. The leaf margin is mostly entire, and some leaf margins and tips have teeth, hairs or thorns. Some kinds of leaves are transparent at the top, commonly known as windows.