Volume I (1961) - Flora of New Zealand Indigenous Tracheophyta - Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons
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Olearia thomsonii Cheeseman

O. thomsonii Cheesem. Man. N.Z. Fl. 1925, 918.

Type locality: Ohiro River, near junction with Wanganui River. Type: A, 9488, B. C. Aston.

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.

DIST.: N. Wanganui River, Ohura Basin; east of Te Awamutu R. O. Green.

I have seen cultivated specimens only.

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