Dyssodia papposa (Vent.) Hitchc.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Much branched, malodorous annual 1–4 dm, puberulent or subglabrous; lvs 2–4 cm, pinnatifid or bipinnatifid, the ultimate segments linear or filiform; heads numerous, campanulate, the disk 4–10 mm wide; invol 6–8 mm, the outer bracts linear, subherbaceous, 2/3 as long as the broader and more chartaceous inner, which are weakly joined at base; rays few, inconspicuous, erect, orange-yellow, 1–2 mm; receptacle pitted, slightly convex; style-branches truncate; pappus scales ca 20, deeply divided into 5–10 bristles; 2n=26. Dry open places, often weedy; w. U.S. to s. Mex. and intr. e. to N.H. and Tenn. July–Oct. (Boebera p.)