Olearia thomsonii Cheeseman

Shrub or tree up to 5 m. tall; branchlets stout, terete, glab. or nearly so. Lvs 7–16 × 3–5 cm. including petiole up to 5 cm. long, oblong- to elliptic-ovate, parallel-sided, cuneately narrowed to base, subcoriac., entire or obscurely sinuate-dentate, glab. above when mature, clad in thin appressed silvery tomentum below. Capitula ∞, on slender pedicels up to 1·5 cm. long, in large corymbs. Phyll. in 4–5 series, tomentose on back, lower ovate, upper lanceolate; florets 12–20. Achenes 1·5–2 mm., ± obovate, clad in subappressed hairs; pappus cop., hairs unequal, up to ± 5 mm. long, white, rigid, finely barbellate.

[From: Allan (1961) Flora of New Zealand. Volume 1.]