Classification
 Nomenclature
Scientific Name:
Ozothamnus leptophyllus (G.Forst.) Breitw. & J.M.Ward, New Zealand J. Bot. 35: 127 (1997)
Synonymy:
  • Calea leptophylla G.Forst., Fl. Ins. Austr. 55 (1786)
  • Cassinia leptophylla (G.Forst.) R.Br., Trans. Linn. Soc. London 12: 126 (1817)
  • = Cassinia glossophylla Cass., Dict. Sci. Nat. 56: 219-220 (1828)
  • = Cassinia retorta A.Cunn. ex DC., Prodr. (DC.) 6, 154 (1838)
  • = Ozothamnus vauvilliersii Hombr. & Jacquinot ex Decne., Voy. Pôle Sud 38, f. 5 (1853)
  • Cassinia vauvilliersii (Hombr. & Jacquinot ex Decne.) Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 133 (1853) – as Cassinia Vauvilliersii
  • = Cassinia fulvida Hook.f., Handb. New Zealand Fl. 145 (1864)
  • = Cassinia rubra Buchanan, Trans. & Proc. New Zealand Inst. 19: 216 (1886 [1887])
  • Cassinia vauvilliersii var. rubra (Buchanan) Kirk, Stud. Fl. New Zealand 315 (1899)
  • = Olearia xanthophylla Colenso, Trans. & Proc. New Zealand Inst. 20: 193 (1887 [1888])
  • = Cassinia spathulata Colenso, Trans. & Proc. New Zealand Inst. 22: 472 (1889 [1890])
  • Cassinia leptophylla var. spathulata (Colenso) Kirk, Stud. Fl. New Zealand 315 (1899)
  • = Cassinia amoena Cheeseman, Trans. & Proc. New Zealand Inst. 29: 391 (1896 [1897])
  • = Cassinia vauvilliersii var. albida Kirk, Stud. Fl. New Zealand 315 (1899)
  • Cassinia albida (Kirk) Cockayne, Trans. & Proc. New Zealand Inst. 38: 374 (1905)
  • = Cassinia fulvida var. linearis Kirk, Stud. Fl. New Zealand 316 (1899)
  • = Cassinia albida var. canescens Cockayne, Trans. & Proc. New Zealand Inst. 38: 369 (1905)
  • Cassinia vauvilliersii var. canescens (Cockayne) Allan, Fl. New Zealand 1, 728 (1961)
  • = Cassinia vauvilliersii var. serpentina Cockayne & Allan, Trans. & Proc. New Zealand Inst. 56: 22 (1926)
  • = Cassinia fulvida var. montana Cockayne, Veg. N.Z. 305 (1928) nom. inval., nom. nud.
  • = Cassinia ×amoenatorta Carse, Trans. & Proc. New Zealand Inst. 60: 574 (1930)
  • = Cassinia fulvida var. montana Allan, Fl. New Zealand 1, 729 (1961)
  • = Cassinia vauvilliersii var. pallida Allan, Fl. New Zealand 1, 728, 965 (1961)
Vernacular Name(s):
Cottonwood; Tauhinu
 Description

Shrub < 0.5–5 m tall.  Stems densely tomentose and sometimes glandular, but without long straight hairs.  Lvs from almost glabrous to moderately clothed in white tomentum on upper surface, with dense white tomentum on lower surface and sometimes with sparse to dense covering of glandular hairs giving a yellow appearance to lf, apetiolate, usually oblong to narrow-obovate or elliptic, rarely linear or ± obtriangular, slightly revolute but lower surface not greatly obscured, 1.5–10–(15) × 1–3–(4) mm.  Capitula in small, dense, rounded corymbs.  Involucral bracts sparsely to moderately hairy especially on stereome of outer bracts, 1–4 mm long, mostly translucent, sometimes tinged pink or red in bud, often the inner bracts with milky white radiating lamina.  Florets 4–15–(25) per capitulum;  receptacular scales few to many or 0, with white radiating lamina slightly exceeding corollas.  Achenes glabrous or with scattered antrorse hairs, square in section and slightly narrowed to base, 1–1.7 mm long;  pappus denticulate, scarcely to distinctly thickened at apex.  

[From:  Webb et al.  (1985) Flora of New Zealand. Volume 4 as Cassinia leptophylla sensu A.Cunn.]

 Biostatus
Indigenous (Endemic)
 Bibliography
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Breitwieser, I.; Ward, J. M. 1997: Transfer of Cassinia leptophylla (Compositae) to Ozothamnus. New Zealand Journal of Botany 35(1): 125–128.
Brown, R. 1817 ("25 Feb 1818"): Observations on the natural family of plants called Compositae. Transactions of the Linnean Society of London 12: 76–142.
Buchanan, J. 1887 ("1886"): On some New Native Plants. Transactions and Proceedings of the New Zealand Institute 19: 213–216.
Carse, H. 1930: Botanical Notes, New Species and New Hybrids. Transactions and Proceedings of the New Zealand Institute 60: 571–574.
Cassini de, A. H. G. 1828: Dictionnaire des Sciences Naturelles 56
Cheeseman, T.F. 1897 ("1896"): On some plants new to the New Zealand flora. Transactions and Proceedings of the New Zealand Institute 29: 390–393.
Cockayne, L. 1905 ("1906"): Notes on the Subalpine Scrub of Mount Fyffe (Seaward Kaikouras). Transactions and Proceedings of the New Zealand Institute 38: 361–374.
Cockayne, L. 1928: The Vegetation of New Zealand - Die Vegetation der Erde XIV. Edition 2. Engelmann Press, Leipzig.
Cockayne, L.; Allan, H. H. 1926: Notes on New Zealand floristic botany, including descriptions of new species, &c. (No. 4). Transactions and Proceedings of the New Zealand Institute 56: 21–33.
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de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76. [as Cassinia amoena Cheeseman]
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de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Naturally Uncommon; Not Threatened; Not Threatened]
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Hooker, J.D. 1864: Handbook of the New Zealand Flora: a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, Campbell's and Macquarie's Islands. Part I. Reeve, London.
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Orchard, A.E.; Wildon, A.J.G. 2004: Cassinia glossophylla Cass. is Ozothamnus leptophyllus (G.Forst.) Breitw. & J.M.Ward (Asteraceae). Australian Systematic Botany 17: 567–570.