Lomatium roneorum, Rone's desert-parsley or Rone's biscuit-root, is a species of Lomatium native to chalky soils in the Chumstick formation in Washington State.[1] [2] The specific epithet commemorates the surname Rone, as determined by an auction for the naming rights.[2]
Lomatium roneorum is approximately 40 cm tall when in flower or fruit and has numerous strongly overlapping blunt-tipped glabrous green to blue-gray leaflets born on thick stems and yellow flowers, distinguishing it from the nearby endemic Lomatium cuspidatum.[2] Flowers are held above the foliage in a compound umbel on thick fleshy stalks that arise from the base of the plant.