Devil Guts

Justin Runyon et al. from Penn State demonstrate that dodder (Cuscuta pentagona), a parasitic orange-stemmed vine, uses chemical scents to find host plants. We see a lot of dodder in the Huntley Meadows Park wetland, and I think it’s a fascinating creation. Not for nothing is it called “Witches’ Shoelaces.” But I would no doubt feel differently if I were this tomato plant.