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Achenes 1.2–2 mm. long, subcylindric to obovoid, usually somewhat curved, c. 5-angular and usually narrowly-ribbed on the angles, the faces between ± flat with scattered brownish cell-like glands, truncate at the apex with a shallowly rimmed depression formed by the upward extension of the achene walls; pappus of a few caducous barbellate setae to c. 2 mm. long, occasionally the pappus setae somewhat paleaceous.
Phyllaries relatively few, appressed imbricate, sometimes grading into the receptacular paleae, membranous-scarious with narrow subhyaline margins and ± cuspidate apices, puberulous-glandular outside, or glabrescent, sometimes pectinate-ciliate on the margins, the outer from c. 1.5 mm. long, the inner to c. 5 mm. long, ovate or oblong to narrowly lorate.
Corollas purplish-mauve fading to white, c. 4 mm. long, with a broad funnel-shaped limb on a slender tubular stalk, sparsely glandular otherwise glabrous.
Stems 1-several, leafy, branching above, shortly pilose on upper stem and branches, glabrescent below; indumentum of long-stalked 1-armed T-shaped hairs.
Capitula small, numerous, at first in ± dense clusters, becoming laxly corymbiform cymose; capitula stalks 0–5 mm. long.
A ± lax erect perennial herb to c. 1.5 m. tall, or stems scrambling to c. 5 m. long.
Involucres 3–5 x 3–5 mm., subglobose-cyathiform.
Receptacular paleae sometimes present.
