Flowers and plants have decorative functions. What are the common flowers and plants in the city?

? Viola tricolor is a biennial or perennial herb of Viola in Violaceae. Basal leaves are ovate or lanceolate, with long stalks, cauline leaves are ovate, oblong or oblate-lanceolate, with round or obtuse machines, and the edges are sparsely rounded or obtuse. Petals are usually purple, white and yellow, so they are called pansies. This species is resistant to low temperature and likes cool, and its flowering is greatly influenced by sunlight. Outdoor planting is suitable for three colors, whether it is garden, courtyard or potted plant, but it is not suitable for indoor planting.

? 2. A bouquet of red flowers

? A bunch of red flowers, also known as firecracker red, ivory red, western red (Guangzhou), red under the wall (Beijing), ivory begonia flower (Yunnan) and fireworks flower (Fujian), are perennial herbs to dwarf common shrubs, belonging to Salvia of Labiatae, which is native to Brazil. The leaves are opposite, ovate, 7 cm long and 5 cm wide, with serrated edges. Summer and autumn terminal racemes, in a string. Most of the flowers are red and some are white (alias "a string of white"). Receptacle bell-shaped, the same color as corolla.

? 3. Catharanthus roseus

? Catharanthus roseus, also known as marigold, is like spring all the year round and is new every day. There are 30,000 wild geese with red heads. Many varieties have been bred in Taiwan Province Province of China, and the breeding trend is that the petals are bigger. Catharanthus roseus has many petals, a long flowering period, lush flowers and vitality. Because it blooms continuously from spring to autumn, it has the reputation of "sunny spring" and is very suitable for planting.

? daisy

? Daisy, alias horsehead orchid, longevity chrysanthemum, spring chrysanthemum, sun chrysanthemum, etc. It is a perennial herb of Compositae. About 10 cm high. Daisy's flower language is naive, friendly, hopeful, pure beauty and hidden love, which is mostly used for planting in pieces and generally not matched with other grass flowers.

? 5. Corydalis angustifolia

? Corydalis angustifolia is a perennial herb of Viola in Violaceae. Plant height 10-30 cm, width 20-30 cm. The flower patterns are colorful, including red, white, yellow, purple and blue, and spots often appear. Sometimes the upper petals and the lower petals are different colors. It is a common flower variety in gardening and flower decoration in big cities.

? 6.malachite grass

? Peacock grass, also known as small marigold, Myrica rubra, stinky chrysanthemum and red and yellow grass, is an annual flower variety of Compositae. Originated in Mexico. The flowering period is long, and the small body contains great vitality. From May 1 day to 1 1 month 1 day, there are endless bright flowers.