Pectis stenophylla A. Gray

Pectis stenophylla A. Gray, Proc. Am. Acad. 21: 393. 1886
A diffusely branched perennial, with suffruticose base; branches purplish, 2-3 dm. long, glabrous; leaves narrowly linear, mucronate, 3-4 cm. long, 1-2 mm. wide, often strongly revolute, with 2-3 pairs of bristles towards the base; glands in a single row along each margin; heads solitary, terminal or in the upper axils; peduncles filiform, 5-6 cm. long; involucre 5 mm. high, 3-4 mm. broad; bracts 8, narrowly oblong, blunt, flat above, slightly keeled about two thirds their length; ray-flowers about 8; ligules yellow, narrow, 3 mm. long, 1 mm. wide; disk-flowers 8-10; corollas 3 mm. long; achenes 2.5-3 mm. long, sparingly hispidulous; pappus-bristles of the disk-flowers 20-40, unequal, scabrous, 2 mm. long; those of the rayflowers only 2, smooth, 1.5 mm. long.
TvpB locality: Hillsides near Batopilas, Chihuahua. Distribution: Chihuahua and Sonora.