Urospermum

Annual or perennial, acaulescent or with distinct stem, with milky latex. Stems with scattered, setose hairs. Leaves rosulate or alternate along branched stems, entire, lyrate or toothed, setose. Capitula ligulate, many-flowered, solitary, terminal at ends of long peduncles. Involucre campanulate; bracts in 1 row, connate at base, elliptic-lanceolate, with long papillae on back. Receptacle flat, epaleate. Florets (ligules) bisexual, fertile; corolla pale yellow, strap-shaped; tube cylindric, longer than lamina with copious hairs at junction of lamina and tube; lamina broadly linear, truncate, 5-toothed. Anthers linear, sagittate, with ovate appendage. Style linear, terete above, pubescent on terete portion; branches long, obtuse, with very short pollen-sweeping hairs. Cypselas linear-oblong, subterete, usually curved, ribbed, beaked; beak basally swollen into bulbous, hollow part crowning the flattened, embryo-containing part of cypsela. Pappus of plumose, basally widened bristles. x = 5, 7 (4-1 report) (high polyploidy-1 report).