Latin name: Euphorbia brilliant
Family name: Euphorbiaceae
Genus name: Euphorbia Euphorbia
Also known as Christian thorn, tiger thorn, unicorn flower, tiger reed.
Euphorbiaceae (Euphorbiaceae) vine-like spiny plants, native to Madagascar, are popular indoor plants and planted in tropical gardens. It blooms all year round, and the northern hemisphere blooms the most in winter. The stems are slightly climbing and branched, and can be as long as 2 meters (more than 7. There are gray thorns on the stem, the leaves are oval and the old leaves fall off. Flowers are small and form small clusters in pairs, and each cluster gathers into a dichotomous cyme. There are two reddish bracts outside, and the flowers are very small. Bracts are yellow and crimson. [Edit this paragraph] Morphological characteristics
It is a thorny erect or slightly climbing shrub. Plant height 1-2m, multi-branched, with white pulp method in the body. Stems and branchlets are angular, with shallow furrows and dense conical spikes. The leaves are attached to the top of the new branches, which are inverted oval, smooth and bright green. Flowers have long stems and two red bracts, and bloom in winter and spring. Capsule oblate. The common cultivated plant of the same genus is Rosa multiflora (ba).
The gray-green branches of Rosa roxburghii are prickly, with bright green spoon-shaped or obovate leaves on the school flowers, and bright red and rose-red flowers on the branches. It has long flowering period, bright colors, elegant shape and easy cultivation, and is a good flower that people like.
[Edit this paragraph] Distribution habit
Tiger thorn plum, also known as iron begonia, is native to Madagascar, Africa. I like a warm, humid and sunny environment. High temperature resistance, not cold resistance. Humus soil with loose drainage is the best. The temperature in winter shall not be lower than 12℃.
[Edit this paragraph] Copy
Mainly by cutting propagation. Cuttings can be carried out throughout the growth period, but it is best to carry out them in May-June, with high survival rate. Select the branches that matured last year and cut them into a section of 6- 10 cm, preferably the top branches. White milk flowed from the wound. Wash with warm water and dry before inserting into the sand bed. Keep it slightly dry and take root about 30 days after transplanting.
[Edit this paragraph] Cultivation
Potted plants should be changed every spring. Don't water them too much. Sufficient water is needed in the summer and autumn growth period, and fertilization is required every month 1 time. In winter, the temperature is low, the leaves fall off, and the potted soil should be kept dry. Flowering in March-June and 65438+February, the flowers can continue to bloom when the soil moisture is kept moderate, and the flowers can continue to bloom when the room temperature is above 15℃ in winter. When plants grow too crowded and dense, you can prune the whole plant before new leaves grow in spring.
Poinsettia has special properties and grows slowly. It is only about 10 cm per year, but its life span is very long, and potted plants can live for more than 30 years. The flowering period is long, and it can be opened all year round if the light and temperature are suitable.
The branches of Rosa davurica are not easy to branch, but will grow very long, with few flowers and messy posture, which will affect the appreciation. Therefore, they should be pruned in time every year to make them grow more new branches and flowers. Generally, two new branches can be born after pruning.
Rosa davurica has a well-developed root system and vigorous growth, which can be used as the rootstock for grafting fairy finger and crab claw orchid, but it belongs to shallow root system and spans far, with few root hairs.
Rosa davurica likes warmth and is not cold-resistant. It grows best at around 22℃ during the day and around 65,438 05℃ at night. When it is kept at 65,438 05℃ to 20℃ in the greenhouse, it can bloom all year round. When the temperature is reduced to 10℃, the fallen leaves will turn into semi-dormancy, and new leaves will be released in the next spring to continue flowering.
Tiger thorn plum likes light. The more sunshine before flowering, the brighter the flowers will be. If it lasts for a long time, the color will be dim. If it is kept in the shade for a long time, it will not bloom. Also pay attention to keep the air circulating.
Rosa davurica fruit can be used as base fertilizer with cultivated soil and hoof horn pieces, and fertilized every half month during the growing period. After beginning of autumn, fertilization should be stopped and greasy fertilizers should be avoided to prevent root rot.
Rosa davurica is drought-tolerant, so watering in spring and autumn should be dry and wet. Water once a day in summer, prevent waterlogging in rainy season, do not water in winter, and the basin should not be wet for a long time; Water should also be controlled during flowering period, which is easy to cause falling flowers and rotten roots.
In late spring and early summer, May-July, the cuttage of Rosa davurica is the easiest to survive. Select stout branches, about 10cm ~ 15cm long, dry the white pulp flowing from the incision, coat it with plant ash, and dry it in the shade for 2 ~ 3 days. After the wound is dried, insert it into plain sand, pour it thoroughly with water, then pour it less, and then pour it after the basin soil is slightly dry.
[Edit this paragraph] Pests and diseases
Stem blight and rot are the main hazards, and 800 times of 50% captan solution/kloc-0 is sprayed every half month. Pests do great harm to whiteflies and scale insects, so 50% chlorpyrifos EC 1500 times solution should be sprayed.
[Edit this paragraph] Toxicity characteristics
Rosa davurica is a Euphorbiaceae plant. There are more than 2,000 species of Euphorbia plants in the world, and more than 200 species in China. Among them, Dumu, Poinsettia, Chamaecrista alternifolia, Bawangbian, Euphorbia Euphorbia, Euphorbia kansui, Euphorbia fischeriana and Euphorbia Euphorbia are all brothers of the same clan. The common feature of Euphorbia plants is that white milk will be secreted from the wound after the tree is injured. This kind of milk is a diterpenoid compound with special structure and toxicity. It is a favorable weapon for plants to protect themselves and prevent the invasion of pests and diseases in the process of evolution. Not only that, when the Rosa davurica fruit blooms, its flower stalk will secrete colloidal mucus, which can stick to insects. It turns out that this is also its line of defense to protect itself from pests.
The whole plant of Rosa davurica has sharp thorns, and the white milk in the stem is toxic. The white milk secreted by the wound of Rosa davurica can stimulate human skin and mucosa, and eating it by mistake can cause nausea, vomiting, diarrhea, dizziness and so on. Family planting will not cause harm as long as it does not fold flowers for children to play with. Experienced gardeners often use the stems and leaves of Euphorbia plants to soak the filtrate to control flower pests such as aphids and red spiders. Stems, flowers and branches can be used as medicine. Cool in nature and bitter in taste. A little poisonous. Has the effects of expelling toxin, purging fire, cooling blood and stopping bleeding.
In addition, according to experts, Rosa davurica is a cancer-promoting plant, and it is recommended not to plant it.
The study found that the whole body of Rosa davurica was "toxic". Rosa davurica fruit will release irritating unpleasant smell, and active substances containing carcinogenic viruses and chemical carcinogens have been detected in the soil where such plants are planted. According to experts, cancer-promoting plants such as Rosa davurica contain "EB virus early antigen inducer", which can induce EB virus to transform into lymphocytes and promote tumor growth caused by tumor viruses or chemical carcinogens. Experiments of inducing nasopharyngeal carcinoma and esophageal cancer by cancer-promoting plants have been confirmed.
[Edit this paragraph] Garden use
Potted ornamental plants, hedges, etc.
Rosa davurica is easy to cultivate, with long flowering period and bright red bracts. It is a popular potted plant. Because the young stems of Rosa davurica are soft, they are often used to shape peacocks and become fine products in hotels, shopping malls and other public places.
[Edit this paragraph] Huayu
Tiger thorn plum flower, stubborn and loyal, gentle and loyal, brave and elegant.
Tiger thorn plum is probably the smartest flower, not as brilliant as azalea, not as pure and elegant as narcissus, not as gorgeous and rich as peony, but it still lives passably, and the small buds are still blooming in the branches, pink and lovely. In the winter when flowers and trees are dying, only the tiger thorn plum is unbeaten, and several bright red flowers bloom in it, adding a lot of spring to the room. Iron-gray autumn branches, as hard as axes and covered with sharp needles, stand out from the crowd and become an inviolable seasonal image: loquat-like leaves are light green, and now they are full of green, naturally introducing arpeggios and deep nostalgia for beauty to people; Small red flowers with butterfly-like branches, every two petals are a small flower, and then they form a small cluster, green in summer and red in winter, like a vow of love that never leaves. The whole shape is unique, self-financing, simple, elegant, pure, aloof, uneven shades, dense and beautiful! Like a philosophical poem with endless aftertaste!
The combination of tiger thorn and plum alone is quite meaningful, which makes her powerful, sharp and charming. If you stare at the tiger thorn plum, its sparse flowers and overflowing fragrance are fascinating.
Give a suggestion to flower lovers:
Although the plum blossom is good, it must not be kept indoors because it is poisonous! ! !
Another way of saying this is that plants such as begonia cause cancer;
"Magic! Carcinogenic flowers can prevent cancer.
Source: 39 Health Network Community
The latest research results show that 52 kinds of plants can promote cancer, including common flowers such as deciduous trees, begonia, Kirin crown and so on. Many people are worried about this, whether we should "eradicate" the carcinogenic flowers such as henna, begonia and thorn plum at home. But experts tell us that cancer-promoting flowers have the miraculous effect of decomposing toxic gases in the air.
It turns out that ornamental plants do not cause cancer in the human body. Most of the poisonous plants are willows. If the leaves and branches of poinsettia break, white slurry will be exposed. If this slurry falls into people's eyes, it will poison them, but this flower has an excellent effect on decomposing some toxic gases in the air. Although some flowers and trees contain some cancer-promoting substances, raising flowers will not cause cancer. Poisonous plants are mostly concentrated in Euphorbiaceae, Araceae and Cycadaceae, and their juices are all toxic components. If you don't directly touch the exposed wounds and chew branches, leaves, flowers and fruits, the toxins will not invade the human body, that is to say, the cancer-promoting substances themselves will not directly lead to the canceration of human cells. ?
On the contrary, begonia, evergreen and other cancer-promoting flowers have always been the bane of indoor harmful gases. They have miraculous effects in absorbing toxic gases such as ether, alcohol and benzene and decomposing formaldehyde, thus avoiding the possibility of cancer in some respiratory systems. Therefore, many people who have just renovated their new houses go to the flower market to buy cancer-promoting flowers to "smoke" the carcinogenic gases emitted by the decoration materials.