This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Nat. 55: 278. 1828.
[Picradenia Hook. Fl. Bor. Am. 1: 317. 1833.]
Pubescent herbs with branching stems and alternate entire or dissected leaves, the blades or divisions narrow, usually linear or filiform, and relatively small, peduncled, radiate or discoid yellow heads. Involucre turbinate to campanulate, its bracts in 2 series, appressed, rather broad, the outer connate at base. Receptacle flat, convex or conic. Ray-flowers fertile, the rays short and broad, 3-lobed. Disk-flowers perfect, fertile, with 5 short lobes. Anthers notched at the base, with rounded auricles. Style-branches truncate and penicillate. Achenes turbinate, pubescent. Pappus of 5-8 acuminate or aristate hyaline scales. [Greek, referring to the thin and pointed pappus scales.]
Type species: Hymenopappus anthemoides Juss.
449. 1898. Philozera multifiora Buckl. Proc. Acad. Phila. 1861: 459.
Annual; stem much branched, puberulent, sparingly hirsute or glabrous, 1°-2° high, leafy. Leaves 1'-2' long, 1-3-parted into filiform, entire, somewhat pubescent segments about \" wide; heads commonly numerous, 6"-10" broad; involucre campanulate, puberulent, its outer bracts 6-9, lanceolate, keeled, acute, united at the base; rays 7-10, cuneate.
In dry soil, Kansas and Colorado to Texas, Mexico and southern California. April-July.