P. hieracioides: biennial; stem 1-3 feet high, covered with short, rough, minutely-hooked hairs; leaves lanceolate, the lower tapering into a stalk, the upper stem-clasping; peduncles rather long and stiff; pappus dirty white, the hairs usually very feathery, except a few of the outer ones of each achene. - Roadsides, borders of fields, and waste places. Fl. July to September.