Image courtesy of the slide collection of Jack Harper.
Image courtesy of the slide collection of Jack Harper.
Image courtesy of the slide collection of Jack Harper.
Image courtesy of the slide collection of Jack Harper.
Seedhead of barnyardgrass. Image courtesy of Larry Kuhns.
Seedhead of barnyardgrass. Image courtesy of Larry Kuhns.
Image courtesy of Larry Kuhns.
Image courtesy of Matthew Naedel.
Seedhead. Image courtesy of Matthew Naedel.
Herringbone design of seedhead. Image courtesy of Matthew Naedel.