Japanese Maple Tree Varieties. Japanese maple tree often refers to maple tree cultivars from Acer palmatum, and also may include maple trees from species Acer japonicum, and Acer shirasawanum. Acer japonicum. Acer palmatum. Acer shirasawanum. A. japonicum Aconitifolium 'Dancing Peacock'.
Vitamins that will stop hair from turning gray. Photo Credit Vitamin C image by Mykola Velychko from <a href='http://www.fotolia.com'>Fotolia.com</a>. Grey hair naturally occurs as you begin to age. The hair is made up of two parts called a shaft and a root. As you get older, the pigments in the hair begin to die, leaving fewer pigments in the hair.
Parents often cite having teenagers as the cause of gray hair. This is a good hypothesis, but scientists continue to investigate why hair turns gray. In time, everyoneâs hair turns gray. Your chance of going gray increases 10-20% every decade after 30 years.