Pectis diffusa Hook. & Arn.

Pectis diffusa H. & A. Bot. Beech. Voy. 296. 1837
A perennial, with a suflruticose caudex; branches 1-2 dm. long, decumbent or nearly erect, densely leafy, angled, glabrous or puberulent; leaves ascending, arcuate, linear-subulate, attenuate, rather firm, with thick midrib and margins, glabrous or scabrous on both sides, 2-4 cm. long, 2-3 mm. wide, with 5-10 pairs of bristles below the middle; glands inconspicuous or even obsolete, in a single row along each margin; heads solitary from the upper axils; peduncles slender, 4—6 cm. long; involucre tiu'binate, 5-6 mm. high, 4 mm. broad; bracts 5, oblong, acute; ray-flowers 5; ligules oblong, yellow, 5-7 mm. long; disk-flowers 7-10; corollas 4 mm. long; achenes 4 mm. long, short-hispid or glabrate; pappus-bristles 5-20, very unequal, rarely a little dilated at the base, the longer 3 mm, long.
Type locality: Jalisco. Distribution: Jalisco and Colima.