Add Yahoo as a preferred source to see more of our stories on Google. The lacy frond of the intermediate wood fern (_Dryopteris intermedia_). Jacob S. Suissa, CC BY-ND There are few forms of the ...

Research by Assistant Professor Jacob S. Suissa at the University of Tennessee, Knoxville, is revealing complexity in how ferns have evolved. Instead of the vascular structure inside fern stems ...

When leaves shift to the dorsal side of the fern’s stem, a smiley face pattern emerges in the stem’s vascular structure, as seen in this sample of a tobacco fern. Research by Assistant Professor Jacob ...

There are few forms of the botanical world as readily identifiable as fern leaves. These often large, lacy fronds lend themselves nicely to watercolor paintings and tricep tattoos alike. Thoreau said ...

Jacob S. Suissa receives funding from The National Science Foundation. He is affiliated with Arnold Arboretum of Harvard University, and Let's Botanize Inc. There are few forms of the botanical world ...