Florestina pedata (Cav.) Cass.

Florestina pedata (Cav.) Cass. Diet. Sci. Nat. Atlas 3: pi. 8
1816.
Stevia pedata Cav. Ic. 4: 33. 1797. ?Ageratum pedatum Ort. Desc. Dec. 38. 1797. Hymenopappiis pedaliis Cav.; Lag. Gen. & Sp. Nov. 28. 1816.
Achyropappus pedalus Less. Syn. Comp. 239. 1832.
Schkuhria glomerala Rob. & Seaton, Proc. Am. Acad. 28: 109. 1893.
An erect annual; stem 3-5 dm. high, simple below, striate, glandular-hispid and hirsute; lower leaves opposite, petioled, 4-7 cm. long, pedatcly divided into 3-5 linear to oblong divisions, hirsutulous; upper leaves alternate, 3-divided or those of the branches simple; heads corymbose-paniculate; involucre turbinate-carr^panulate, 4 mm. high, 5 mm. broad; bracts about 8, obovate, usually purplish; flowers 10-15; corollas white, 3 mm. long; tube about 1 mm. long; lobes oblong; achenes elongate-obpyramidal, 4-angled, hirsute, 3 mm. long; squamellae 8, orbicular or obovate, 1 mm. long, callous at the base.
TT>E locality: Mexico.
Distribution: Central and southern Mexico.