Arlen Reyb (or arl for short) took on the name of "the arltree" for sometime. He acquired even greater fame than he had before and even created a religion.
It has recently been said by the all-knowing Arlen, "Jesus Christ : God :: Arltree : Halo" possibly implying that HaloOfTheSun is the son of The Arltree, or that he is the Messiah.
The fruit produced by arl is called "arl fruit." The not as informed members of RMRK refer to them as the "bean." Here is a picture of an arl fruit.
You may believe that it is significantly larger than the arltree but please take into consideration that this was magnified and the arltree had its picture taken at a distance to avoid destruction of the camera for the arltree is angry when others take pictures of it. The other beans not created by Arrow-1, the person who helped create the beans (the method does not want to be revealed for it is truly disgusting) are evil, enemy beans.