Alternate Small 320×306 Medium 640×611 Large 1024×978 Download Tiff Original 2400×2292 | (378.5 KB) Description Usually pertains to leaves. Not opposite each other but bourne singly at different levels on the stem. Keywords botanical, leaf, leaves, plant Galleries Leaf Shapes Source: Don E. Eyles, A Guide and Key to the Aquatic Plants of the Southeastern United States (Wahington D.C.:U.S. Government Printing Office, 1944) 5