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..
Leaves linear, long-acuminate, thick, pubescent or glabrate, 4'-8' long, 2"-5" wide, somewhat con-duplicate, their margins conspicuously white-to-mentose and crisped, or entire. Scape stout, to-mentose, at least above, shorter than or equalling the leaves; head 1'-2' broad; involucre usually quite glabrous, nearly l' high; achenes slightly contracted at the summit; about 3" long, beakless; pappus of 40-50 unequal bristles.
20. SITl'LIAS Raf. New Fl. N. A. 4: 85. 1836.
[Pyiirhopappus DC. Prodr. 7: 144. 1838.]
Annual or perennial herbs, with alternate or basal leaves, and mostly large, solitary or few heads of yellow flowers, borne on long, usually bracted peduncles. Involucre oblong or campanulate, its principal bracts in 1 series, nearly equal, slightly united at the base, with several series of smaller outer ones. Rays truncate and 5-toothed at the summit. Anthers sagittate at the base. Style-branches short, obtusish. Achenes oblong or fusiform, mostly 5-ribbed, roughened or hirsute, abruptly narrowed into a long filiform beak. Pappus of numerous soft simple brownish somewhat unequal bristles, surrounded at the base by a villous white ring. [Name unexplained.]
Six known, species, natives of North America and Mexico. Besides the following, 3 others occur in the southwestern United States. Type species: Sitilias caroliniana (Walt.) Raf.
Stem leafy, usually branched; plant glabrous, or nearly so.
1. S. caroliniana.
Scape naked, monocephalous; plant hirsute, or pubescent.
2. S. grandiflora.
Leontodon carolinianum Walt. Fl. Car. 192. 1788.
S. caroliniana Raf. New Fl. N. A. Part 4, 85. 1836.
Pyrrhopappus carolinianus DC. Prodr. 7: 144. 1838.
Annual or biennial, glabrous or nearly so; stem leafy, usually branched, 2°-5° high. Basal leaves oblong or oblong-lanceolate, pinnatifid, lobed, coarsely dentate or some of them entire, acute, acuminate, or obtusish, 3'-8' long, 1/2'-1 1/2' wide, narrowed into margined petioles; stem leaves sessile or partly clasping, the upper usually lanceolate, entire and acuminate; peduncles usually pu-berulent; heads 1 or several, 1'-1 1/2' broad; involucre commonly puberulent or pubescent, about 1' high, its outer bracts setaceous or subulate, spreading, the inner corniculate at the apex; achenes 2' -3" long, tipped with a filiform beak of about three times their length.
In dry fields, Delaware to Florida. Kentucky, Missouri, Louisiana and Texas. April-July.
Barkhausia grandiflora Nutt. Journ. Phila. Acad. 7: 69. 1834.
Pyrrhopappus scaposus DC. Prodr. 7: 144. 1838.
Sitilias grandiflora Greene, Pittonia 2: 180. 1891.
Hirsute or pubescent; root tuberous-thickened. Leaves all basal, oblong or spatulate in outline, deeply pinnatifid, 3-7' long, 1-1 1/2' wide, narrowed into margined petioles; scape naked or sometimes with a small leaf near its base; head solitary, 1-2' broad; outer bracts of the involucre small, short, subulate, the inner ones obscurely cornicu-late at the tip.
On prairies, Kansas to Texas. April-June.