Malacothrix californica
Introduction '''''Malacothrix californica''''' is a species of flowering plant in the family Asteraceae known by the common name '''California desertdandelion'''. It is native to California, the western margin of Arizona and Baja California, where it may be found especially in the South Coast, Transverse and Peninsular Ranges and the western Mojave Desert.Involucres (8–)10–15 × 5–6 mm. Phyllaries usually 20–26+ in 2-3+ series, (midstripes often reddish) lanceolate to lance-linear or subulate, unequal, hyaline margins 0.1–0.5 mm wide, abaxial faces (of outermost, at least) shaggily piloso-hirsute to arachnose (at least proximally).
Description It is an annual herb producing a flowering stem up to about 45 centimeters high. The pinnately lobed linear to lance-shaped leaves are mostly located around the base of the plant. The lobes are generally threadlike to linear. The inflorescence is a flower head borne singly lined with hairy-based phyllaries, usually 20 to 26 or more in 2 to 3 or more series. Each bract often has a red midstripe. The  head bears rings of ray florets, usually yellow to pale yellow, but sometimes white.
References
External links ** Flora of North America* Photo gallery