Volume I (1961) - Flora of New Zealand Indigenous Tracheophyta - Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons
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Olearia semidentata Decne.

O. semidentata Decne ("Icon. in Voy. Venus, nullis notis adjectis") ex Hook. f. Fl. N.Z. 1, 1853, 115.

Eurybia semidentata F. Muell. Veg. Chath. Is 1864, 21.

Type: K, 32 Travers.

Shrub up to 1 m. tall; branchlets slender, clad in white floccose tomentum. Lvs 3·5-7 cm. × 6-9 mm., narrow-lanceolate, subsessile, rather distantly serrate in upper half, glab. above when mature, clad in white appressed tomentum below. Peduncles slender, tomentose, 5-8 cm. long, with ∞ lanceolate bracts. Capitula 2.5-3·5 cm. diam.; phyll. pilose towards tips and on margins, acute, up to 1 cm. long; ray-florets purple, disk-florets violet-purple; achenes linear, pubescent, c. 3 mm. long; pappus-hairs up to 7 mm. long.

DIST.: Ch. Peaty ground and bogs.

FL. 11-12. FT. 1-?

Var. albiflora Dorrien Smith in Kew Bull. 1910, 125. "Here" (a large bog) ". . . I discovered several bushes of an entirely white form of O. semidentata, unknown to Mr. Cox; he also found a lovely pink variety." An illustration is labelled "O. semidentata var. albiflora". The status needs further study.

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