Study on invasion of Huangyinghua (Solidago sp. )

Huangyinghua is a species of Solidago L. , composite family. It has become one of the main cut-flowers in Guangdong flower market since its bright color. However, whether Huangyinghua can be developed as a cut-flower is widely questioned because its appearance is very similar to S. canadensis, which is an invasive weed. The pollen germination, seed germination, ovary structure and associated plants of Huangyinghua were studied in this paper. Meanwhile, the invasion and destruction of Huangyinghua were investigated. The results showed that its ovary structure was not intact and the germination rate of pollen was almost zero. It had no inhibition and destructive effect on the associated plants. Therefore, Huangyinghua can be safely applied in cut-flower industry.