Vernonia karvinskiana subsp. karvinskiana

Vernonia conzattii B. L. Robinson, Proc. Am. Acad 44:615. 1909.
Stems herbaceous, erect, thinly tomentose, corymbosely branched above; leaf-blades firm, ovate-oblong or elliptic to ovate-lanceolate, 5-7 cm. long, 2-3 cm. wide, acuminate, obscurely serrulate or entire, acute or obtuse at the base, short-petioled, rugose and scabrous above, paler, densely pubescent or subtomentose, and resinous-dotted beneath; veins reticulate; inflorescence umbelliform, depressed-hemispheric, 8-20 cm. wide; peduncles 12-30 mm. long, tomentose, with subulate bracteoles; heads about 34-flowered, 12 mm. in diameter; involucre broadly campanulate, 8-10 mm. high, the scales imbricate in several series, purple, mucronate, ciliate, the outer lanceolate to lance-linear, the middle oblong, mostly rounded at the cuspidate apex, the inner subacute; achenes glabrate, somewhat glandular; pappus nearly white, the bristles 6 mm. long, the scales narrowly linear, 1 mm. long.
Type locality: Santa Ines del Monte, Zimatlan, Oaxaca, alt. 2700 meters. Distribution: Oaxaca.