There is only ivy among the plants, there is no ivy, and there is no such thing as ivy in the usual name.
Hedera Helix or Hedera Nepalensis varsinensis, there are more synonyms, don't delve into them), aliases: ivy, ivy, earth drum vine, wood dog, centipede, cliff climbing vine, dog snake, triangular vine, mountain grape, cow maple, triangular wind, creeper, tree climbing vine, none of these names are called ivy.
Ivy is native to Europe, Asia and North Africa, and now the domestic ivy should be called Chinese ivy, is there a difference between it and foreign ones? In fact, there is no difference, for plants, it only changes the geographical environment, and the plants themselves do not mutate. The ivy referred to in this article is the ivy, and it will not deliberately distinguish between foreign and domestic.
Ivy is an evergreen vine climbing plant of the family Pentaceae, a very common green seedling in the southern region, its suitable growth temperature is 18 20, because ivy can not tolerate low temperatures, so it is not so common in the north.
Ivy is actually an invasive species in many areas, especially abroad. Many regions are prohibited. Because ivy is easy to survive and grows quickly, it will also climb other plants and cause the death of other plants, but China is vigorously developing ivy as a vertical greening plant, so the environment is different, and the use of plants will not be the same.
Ivy can purify indoor air, according to the data, in a room of about 10 square meters, ivy can eliminate 70% of benzene, 50% of formaldehyde and 24% of trichloroethylene, a pot of ivy formaldehyde adsorption is equivalent to 10 grams of coconut carbon formaldehyde adsorption. Therefore, after the renovation of the new house, you can put some ivy into it to absorb harmful gases.
In addition, the term "Ivy League" is now used to refer to an elite league of eight schools: Harvard, Yale, Princeton, Columbia, Pennsylvania, Brown, Dartmouth, and Cornell. To put it simply, it is a great school, and the students in it are all elites. Why is it called the Ivy League? It is estimated that it was also due to the fact that the ivy plant was used as a metaphor for this alliance in the first newspapers, so it was used later.
To sum up, the name and name of the ivy plant are correct, among the plants, ivy is not there, and the name is also wrong, and the Ivy League is the name of a famous foreign university alliance, not specifically referring to the ivy in the plant.