quite glabrous, rigid, erect, herbaceous; stem ribbed and furrowed, leafy, virgate, corymboso-paniculate at the apex; leaves elongato-lanceolate, quite entire, margined, midribbed and obliquely veined, acuminate, the lower (not seen), the medial stem-clasping, shortly decurrent or adnate at base, the uppermost sessile, gradually shorter and narrower; infl. level-topped, much divided, the partial corymbs 10–12-headed, with short, nude pedicels; inv. nearly nude at base, cylindrical, of 5–6 broad, flat scales; disc-fl. 8–12, rays 3, long, spreading; achenes quite glabrous, narrowed upwards. Stem probably 3–4 ft. high, the lower part not seen. Medial leaves 5–8 inches long, 1–1 1/4 inch wide. Inv. 4–5 lines long. Fl. yellow. Heads in the general infl. over 100.