The Ohio State University: College of Food, Agricultural, and Environmental Sciences

Get a handle on pigweed identification

Our latest video covers pigweed identification. We compare four aspects of pigweed biology that we use to differentiate between redroot pigweed, waterhemp, and Palmer amaranth – pubescence, petiole length, leaf shape, and inflorescence (seedhead) characteristics.

Digital weed ID books now available for all platforms

Our digital books on weed identification are now available for use on all types of devices via iTunes and GooglePlay.  These include “The Ohio State University Guide to Weed Identification“, “Identifying Noxious Weeds of Ohio“, and “Principles of Weed Ecology…

OSU Weed ID iBook – available now (and free for a while)

Our new iBook, “The Ohio State University Guide to Weed Identification”, is available now on iTunes for download to iPads and Mac computers.  We really think this takes weed ID to a new level, and the photos are outstanding.  Credit…