amaranth (IMAGE) Penn State Caption Amaranth, shown here in a Penn State greenhouse, is an annual tropical edible plant that is sometimes cultivated as a leafy vegetable. It is one of the species mentioned in the study, "Food Resilience in a Dark Catastrophe," authored by Daniel Winstead and Michael Jacobson in the College of Agricultural Sciences. Credit Daniel Winstead Usage Restrictions non commercial use only License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.