Erysimum Asperum is commonly known as the Western Wallflower. It is a species of flowering plant that is native to Western North America. As with many plants, there are a variety of synonyms for the Erysimum Asperum, such as Cheiranthus Asper (L.) DC, Erysimum lanceolatum Pursh, and Erysimum pugetense Piper. Other common names for this plant include Rough Wallflower and Bowles' Wallflower. This beautiful plant produces bright yellow blooms that attract bees and other pollinators. It is commonly used in landscaping and is a popular choice for rock gardens due to its hardiness and drought tolerance.