Alyssum desertorum is a species of flowering in the mustard family known by the common name desert madwort. Known also as the Lepidium fremontii. Features: yellow-centered yellow to cream tiny flowers. These plants have distinction bloom in April, May, June and July. It is located in Africa, Eastern Europe, and western Asia that brought to North America for medical reasons, as the plant was purported to cure hiccups, mental illness and rabies.