Desert parsley is a group of plants. The most commonly used type of desert parsley is Lomatium dissectum (fernleaf biscuitroot). The roots of this plant are used to make medicine.
Desert parsley is taken by mouth for asthma, colds, cough, flu, lung injuries, pneumonia, tuberculosis, and viral infections.
Desert parsley is applied as a dressing to treat sores, cuts, boils, bruises, sprains, and broken bones. Powdered root of desert parsley is applied to the skin to treat burns, boils, and other skin wounds. Desert parsley is added to steam baths to treat joint problems, sprains, pain, and pneumonia.