Clavigera dentata de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 128. 1836

Shrubs, 60–120 cm. Stems branched from bases, puberulent, sparsely gland-dotted. Leaves alternate; petioles 1–2 mm; blades obscurely 3-nerved from bases, lanceolate to lance-ovate, 5–40 × 3.5–12 mm, bases acute to cuneate, margins usually coarsely dentate, sometimes entire, apices acute, faces gland-dotted. Heads in (elongate) paniculiform arrays. Peduncles 1–2 mm, puberulent, gland-dotted. Involucres cylindric to campanulate, 7–11 mm. Phyllaries 18–22 in 5–6 series, greenish or stramineous, 3–5-striate, unequal, margins scarious (apices acute to obtuse, ciliate); outer ovate (glandular-pubescent), inner lanceolate (gland-dotted). Florets 13–20; corollas pale green or yellow, 4.5–6.5 mm. Cypselae 3.5–4 mm, usually glabrous, rarely sparsely pubescent; pappi of 30–35 tawny, usually barbellate, sometimes subplumose, bristles. 2n = 18.

Flowering Aug–Nov. Gravel of limestone streambeds; 100–400 m; Tex.