Avenarius Apples This page first published: Oct 9, 2006 · Modified: Jun 17, 2018 · by CooksInfo. Copyright © 2020 · This post may contain affiliate links · This blog generates income via ads · Avenarius are small apples, with greenish-yellow skin covered with pale red flushes. Inside, they have juicy, sweet white flesh. The tree is very hardy. Cooking Tips For fresh-eating.