Malus 'Evereste' pollution. The 'Evereste' crab apple have earned the Award of Garden Merit as an ornamental tree by the Royal Horticultural Society in 1993. Malus 'Evereste' "Malus" PERPETU 'Evereste' is an ornamental cultivar of crabapple that has been developed by INRA in 1974 and is registered under their trademark with the name "Malus" perpetu. 'Evereste' is a small deciduous tree to a height of 7 m (22 ft), and spread of 6 m (20 ft), broadly conical in outline, with more or less lobed leaves. The 'Evereste' crabapple is an excellent tree for spring blossom, with so many flower that you
Étienne-Louis Malus Étienne-Louis Malus Étienne-Louis Malus (; ; 23 July 1775 – 24 February 1812) was a French officer, engineer, physicist, and mathematician. Malus was born in Paris, France. He participated in Napoleon's expedition into Egypt (1798 to 1801) and was a member of the mathematics section of the Institut d'Égypte. Malus became a member of the Académie des Sciences in 1810. In 1810 the Royal Society of London awarded him the Rumford Medal. His mathematical work was almost entirely concerned with the study of light. He studied geometric systems called "ray systems", closely connected to Julius Plücker's "line geometry". He conducted