the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chemistry.
The cultivated saffron (saffron crocus C. sativus) flowers in the autumn and comes up every year, so it is known as a perennial plant. It does not grow wild, and is now a triploid form of the eastern Mediterranean plant called Crocus cartwrightianus. It is thought that C. cartwrightianus came from Crete.he cultivated saffron (saffron crocus C. sativus) flowers in the autumn and comes up every year, so it is known as a perennial plant. It does not grow wild, and is now a triploid form of the eastern Mediterranean plant called Crocus cartwrightianus. It is thought that C. cartwrightianus came from Crete.
This species of tree may be the fastest growing tree in North America. In some locations it can put on a good 10-15 feet per year, and can often do so for several years in a row.It can continue to put on 5 feet per year even after this phase is completed, and may do so for around a quarter of a century.equoia trees are best known for their mammoth size, but they are also very fast growing. They can put on 4-6 feet per year for around 10 years, and then can keep adding on around 2 feet per year for the next 30. Perhaps more impressive is the fact that the sequoia can continue to pack on the girth each year.