Pollen of orache (Atriplex patula) by SEM. This broadleaf weed also known as spear saltbush, spear oracle, halberd-leaf orache, and spear saltweed is pollinated by wind. It grows on salty or alkaline soils in disturbed habitats and also as a weed in the fields of various crops. Enhanced SEM. Image width: 61 micrometers. Magnification: 1640x if the image is printed 10 cm wide.