 "Diplacus clevelandii" is a sturdy perennial herb producing a hairy erect stem up to 90 centimeters tall from a woody caudex.The hairy lance-shaped or oblong leaves are up to 10 centimeters long and oppositely arranged, often with smaller leaves growing in their axils.The tubular base of each flower is encapsulated in a hairy calyx of sepals over 2 centimeters long with long, pointed lobes.