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Leaves membranous, petiolate; petiole mostly 3–5 mm. long, sometimes to c. 45 mm. long; lamina mostly to 5–8(12) x 1–4 cm., ± narrowly lanceolate or elliptic-lanceolate, apex tapering acuminate, base cuneate and decurrent on petiole, or lamina to c. 12 x 6.5 cm. and ovate-lanceolate to ovate with apex acute and base abruptly contracted and narrowly decurrent on petiole; margins crenate-serrate with callose-tipped teeth or coarsely serrate; sparsely pilose or puberulent to glabrescent on both surfaces, minutely gland-pitted beneath; indumentum of one-armed or unequal-armed T-shaped hairs.
Capitula numerous, in lax clusters 4–10 cm. across, terminal on branches, or capitula in a large terminal panicle; synflorescence branches sparsely linear-bracteate; capitula stalks mostly 4–22 mm. long, appressed-pubescent Involucres 3–6 x 4–7 mm., obconic-campanulate; phyllaries few-seriate, the outer 2–4 mm. long and narrowly lanceolate with an aristate or subulate apex, the inner to c. 6 mm. long and narrowly oblong-elliptic with an acute mucronate-aristate to tapering-acuminate and sharply-tipped apex, greenish, sometimes purple-tinged above, brownish strigulose or sericeous.
Achenes 2–3 mm. long, subcylindric to subfusiform, obscurely narrowly c. 5-ribbed, ± appressed-hispid glandular; outer pappus of short, narrow, scale-like setae, inner of barbellate setae 5–7 mm. long.
Stems to c. 5 m. long; branches striate, appressed pubescent, indumentum of short-stalked T-shaped hairs.
A lax somewhat delicate scrambling shrub, or diffuse subshrub, to c. 3 m. tall.
Corollas mauve, fading to white, c. 7 mm. long, narrowly funnel-shaped.
Florets 14–20 per capitulum.