Perfumeballs

Gaillardia suavis (Gray & Engelm.) Britton & Rusby, Trans N. Y. Acad. 7: 11. 1887.
Agassizia suavis Gray & Engelm.; A. Gray, Proc. Am. Acad. 1: 49. 1847. .
Gaillardia simplex Scheele, Linnaea 22: 160. 1849.
? Gaillardia luberculata Scheele, Linnaea 22: 349. 1849.
Gaillardia odorata Lindheimer; A. Grav, Bost. Jour. Nat. Hist. 6: 230. 1850.
Gaillardia trinervata Small, Fl. SE. U. S. 1293. 1903.
A scapose winter annual; leaves basal, somewhat lyrately once or twice pinnatifid or the earliest merely lobed, or spatulate or oblanceolate, triple-ribbed and merely dentate (G. trinervata), 8-15 cm. long, petioled, sparingly hairy on the margins and veins; divisions lanceolate or triangular, acute, often sinuately toothed; scape 2-6 dm. high, striate, more or less hirsute; heads radiate or discoid; bracts oblong, acute, about 1 cm. long, sparingly long-hairy; ray-flowers usually not well developed, either neutral or styliferous but sterile, or wanting; ligules yellow, lilac, or purplish, 1 cm. long or less, 3-cleft, often irregularly so; disk purple, 1.5-2 cm., or in fruit 2-3 cm. broad; corollas about 6 mm. long; tube less than 1 mm. long; throat elongate-campanulate, glabrous; lobes ovate, glandular-pubescent; achenes 3 mm. long, densely hirsute; squamellae ovate-lanceolate, the body about 5 mm. long, produced into, an awn 2-3 mm. long.
Type locality: Plains near Bexar, Texas. Distribution: Oklahoma, Texas, and Coahuila.