To find photos of particular plants use the search function
Refine your search with the terms AND, OR or NOT. Use * as a wildcard
Rust fungus of the genus Melampsora on the undersides of the foliage of an Eastern Cottonwood or Virginia Necklace Poplar (Populus deltoides), a deciduous tree to 30m tall, native to the eastern and central United States. Rust is common on poplars and often overwinters on other species, such as groundsel (Senecio vulgaris). pests-and-diseases-3512htm'>Plant. Pests and Diseases
