Pectis purpurea T. S. Brandeg.

Pectis purpurea Brand. Zoe 5: 225. 1905
A branched annual; stem 1-3 dm. high, angular, glabrous, purple; leaves linear or linearlanceolate, 3-4 cm. long, 3-4 mm. wide, with revolute margins, with 1 or 2 rows of glands on each side of the midrib and 2 or 3 pairs of bristletipped lobes or teeth at the base; heads on elongate, axillary and terminal peduncles 5-8 cm. long; involucre turbinate-campanulate, 4-5 mm. high, purple; bracts oblanceolate, keeled below, with 2 rows of conspicuous glands and a deltoid obtuse apex ; ray-flowers about 8 ; ligules linear, 6 mm. long, purple on the back ; disk-flowers numerous; corollas 3 mm. long; achenes 3 mm. long, pubescent; pappus of a minute crown of short fimbriate acute squameUae.
Type locawty: Near Cofradia, Sinaloa. Distribution: Sinaloa.