High Quality Content by WIKIPEDIA articles! Erigeron supplex is a rare species of flowering plant in the daisy family known by the common name supple daisy. It is endemic to the coastline of northern California, where it probably remains only in Sonoma and Marin Counties. It grows in the scrub of coastal bluffs and grasslands. This is a perennial herb producing an unbranched, hairy, erect stem up to 40 centimeters tall. It is surrounded at the base by oval-shaped leaves several centimeters long. The inflorescence is generally a single flower head one or two centimeters wide containing yellow disc florets and no ray florets. The fruit is an achene with a pappus of bristles.