Scent Stalking.

The article looks at research related to parasitic plant known as the "dodder." Scientists are reporting that the wiry orange plant finds plants to raid for nutrients by growing towards their smell. The plant responds to volatile compounds wafting off nearby plants and shows preferences for certain species, says Consuelo De Moraes of Pennsylvania State University in University Park. They say that their work marks the first time that anyone has shown that a plant will grow toward airborne chemicals from other plants.