branches tomentose or pubescent, sometimes becoming glabrous below; leaves 3/4–1 1/2 in. long, bipinnately divided in the upper 1/2 or 2/3, pilose when young, usually becoming glabrous with age; ultimate segments 2–6 lin. long, cylindric, acutely mucronate; heads terminal, solitary, sessile, 7–12 lin. long, about 3/4–1 in. in diam., usually surrounded by the upper leaves; floral bracts 2 1/2–4 lin. long, ovate or lanceolate-ovate, sharply long- (rarely shortly) acuminate, villous; perianth-tube 1 1/4–1 3/4 lin. long, subglobose, glabrous below; segments 3–4 3/4 lin. long, spathulate-linear, spreadingly villous; limb 1–1 1/4 lin. long, linear-oblong or lanceolate-linear, subacute, villous, that of the posticous segment glabrous; anthers 3/4–1 lin. long, linear; hypogynous scales 2/3–1 lin. long, filiform-linear, acutely acuminate; ovary 1/2– 3/4 lin. long, elliptic-ovate, covered with long hairs; style 2 3/4–4 1/2 lin. long, cylindric, distinctly swollen at the base, glabrous; stigma 3/4–1 lin. long, narrowly cylindric, subacute, furrowed. null