Cov nroj no muaj nyob hauv daim ntawv ntoo lossis tsob ntoo me. Cov neeg zoo rau cov genus Loch (Elaeagnus), tsev neeg ntawm Lochows (Elaeagnaceae). Lub tebchaws ntawm nqaim-neeg tawm hws yog suav tias yog North America thiab kuj Tuam Tshoj. Qhov no yog ib tsob nroj photophilous. Av tuaj yeem yog yam twg. Cov av noo yuav tsum yog tus tsaj. Nws loj hlob mus rau qhov siab txog 10 meters thiab nyob rau 60 xyoo.
