Ehretia anacua. It is basically a subtropical fruits. Show All Show Tabs knockaway General Information; Symbol: EHAN ... Perennial: Growth Habit: Shrub Tree: Native Status: L48 N: Other Common Names: anacua sandpaper-tree sugarberry Data Source and Documentation: About our new maps. google_ad_slot = "2609603507"; Located on a vacant lot in South McAllen.. Ideal flowering tree for alkaline areas, however it will tolerate acidic soils. Ehretia anacua, common names include Anacua, Sugarberry Anacua, Anaqua, Knockaway, Sandpaper tree. NATURAL HABITAT AND PREFERRED SITE: Anacua is native to Southern Texas.