Pitch is how high or low we hear a sound to be. If the frequency is higher, the pitch is higher. The unit of frequency is hertz. Ghz, or gigahertz, also can be used to measure frequencies. We can hear all the way up to 20,000 hertz! To conclude, the higher the frequency, the higher the pitch.
Several species of honeysuckle have become invasive when introduced outside their native range, particularly in New Zealand and the United States. Invasive species include L. japonica, L. maackii, L. morrowii, and L. tatarica.ost honeysuckle berries are attractive to wildlife, which has led to species such as L. japonica and L. maackii spreading invasively outside of their home ranges. Many species of Lonicera are eaten by the larvae of some Lepidoptera species â see a list of Lepidoptera that feed on honeysuckles.
There are five types of honeysuckle bush common to North America: Tartarian, Standish, Amur, Pretty and Morrow's. Each of these varieties is considered invasive, and prohibited in many regions. Bush honeysuckles grow six to ten feet tall and form a dense thicket of vegetation that chokes out other species.