Rosemary

The rosemary is evergreen herbaceous shrub with many colors of flower such as gold, silver, pink, and purple. The rosemary is well known as medical herb with an ability to improve memory and also cancer prevention.

Anatomy
The rosemary is an evergreen shrubby herb that is usually 1.5 ~ 2.0 m long. The leaves are needle-shape and 2 ~ 4cm long. The rosemary flower is small and usually blue; there are also gold, silver, pink, and purple rosemary too. 

Reproduction
The rosemary use sexual and vegetative reproduction. There are three ways to reproduce. The first reproduction is by using 'seed', the second way of reproduction is 'division of roots', and the third way of reproduction is called 'cutting layers'. In warm and sunny time rosemary use ‘seed reproduction’. In August, rosemary use ‘root cutting’ reproduction; they cut their root in half of root’s length. And also in summer, the rosemary use ‘cutting layer’ reproduction. Usually root cutting and layering is called 'Vegetative reproduction by underground parts', and usually plants use vegetative reproduction by underground parts when the plantlets grow up too fast to be supported. Vegetative growth is starting with bend the runner into the soil. Then the rooted stem is cut from the base plant and grow up independently.(Pinkston, 329)

Ecology
An evergreen plants lives all year round. The rosemary is usually grow up in light and dry soil; in a chalk soil, rosemary grow up small. . Usually an 'evergreen plant' is grow up in warm tropical place and some are grow up in cool temperate climates place. For that reason an evergreen plants such as rosemary has a needle shaped leaves. And the advantage for being an evergreen-needle shaped is they get less efficient at photosynthesis; actually this is the reason that how an evergreen-rosemary can survive in the warm tropical place and cool temperate climates place. 

Uses of Rosemary
The rosemary is well known as Medical herb. For example, the rosemary is known as a symbol of remembrance. The rosemary has a good ability to improve human’s memory. In Europe the Rosemary has been used in wedding time. Even famous Arthur Shakespeare said rosemary is for remembrance in his book Hamlet. Studies shows that rosemary oil from leaves has a good function to prevent the cancerous tumor. In University New Brunswick - New Jersey, found the rosemary oil from leaves prevent the cancerous tumor on animal skins. And also in University of Illinois found that rosemary prevent the breast cancer also. But those researches from University New Brunswick and University Illinois are not proved to human body yet. 

Related References

 * Ecology, Anatomy Wikipedia
 * Reproduction, Uses of Rosemary Botinical.com
 * Ecology Wikipedia
 * Uses of Rosemary Rosemarinus officinails
 * Pinkston, W. Biology for Christian Schools. Bob Jones University Press, Greenville, SouthCarolina.