HIROSHIMA UNIVERSITY IMAGE: (A) BUD STAGE; (B) FLOWERING STAGE; (C) SPIKELETS CREDIT: QUAN, HIROSHIMA UNIVERSITY Native to the southeastern United States, a weedy grass has spread northward to Canada and also made its way to Australia and Japan. Andropogon virginicus grows densely packed and up to seven feet tall, disrupting growth patterns of other plants and competing...
