Nomenclature
Scientific Name:
Gentianella saxosa (G.Forst.) Holub, Folia Geobot. Phytotax. 3: 218 (1968)
Synonymy:
  • Gentiana saxosa G.Forst. (1777)
  • Chionogentias saxosa (G.Forst.) L.G.Adams, Austral. Syst. Bot. 8: 978 (1995)
  • = Gentiana hookeri J.B.Armstr., Trans. & Proc. New Zealand Inst. 13: 340 (1880 [1881]) pro parte
  • = Gentiana saxosa var. recurvata Kirk, Trans. New Zealand Inst. 17: 224 (1885)
 Description

Plants polycarpic, height in flower 40–170 mm. Flowering stems terminal and lateral or lateral only, (2–)4–16 per plant, stems tinted purple-black, lateral flowering stems decumbent, 1.3–2.6 mm diam. when dry, flowering stem leaves 4–5 pairs per stem, lowest pedicels from halfway up flowering stem. Rosette leaves narrowly elliptic to elliptic, leaf apex rounded, 17.8–87 mm long, 3.2– 17.5 mm wide, green, not recurved; petiole distinct, 14.5–64 mm long, 0.7–3.4 mm wide at leaf base. Pedicels 1 per axil, 10–67 mm long, 1.4–1.5 mm diam., 0.7–1.3 mm diam. when dry. Flowers 9–82 per plant, 15.0–24.2 mm long. Calyx 6.8–8.8 mm long, green; lobes 4.5–6.2 mm long, 2.0–3.2 mm wide at base, distinctly recurved, apices acute, margins minutely denticulate, sinus hairs absent. Corolla 13.7–15.7 mm long, white, veins uncoloured; tube 3.5–4.0 mm long; lobes 9.6–11.2 mm long, 6.7– 7.4 mm wide; nectaries 2.5–3.7 mm from corolla base. Filaments 7.6–8.1 mm long from corolla base, 0.7–0.8 mm wide. Anthers 2.0–2.1 mm long, anther wall blue-black, mouth yellow, extrorse at anthesis. Stigma colourless. Ovules 30–44 per ovary. Capsule 10.0–19.3 mm long. FL late Jan–early Feb.

[Reproduced from Glenny (2004, New Zealand J. Bot. 42: 361-530) with permission from The Royal Society of New Zealand.]

 Biostatus
Indigenous (Endemic)
 Bibliography
Adams, L.G. 1995: Chionogentias (Gentianaceae) a new generic name for the Australasian 'snow-gentians' and a revision of the Australian species. Australian Systematic Botany 8: 935–1011.
Armstrong, J.B. 1881: Descriptions of new and rare New Zealand plants. Transactions and Proceedings of the New Zealand Institute 13: 335–343.
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Naturally Uncommon]
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. [Not Threatened]
Glenny, D. 2004: A revision of the genus Gentianella in New Zealand. New Zealand Journal of Botany 42(3): 361–530.
Holub, J. 1968: Einige neue nomenklatorische Kombinationen innerbalb der Gentianinae. Folia Geobotanica et Phytotaxonomica 3: 217–218.
Kirk, T. 1885 ("1884"): On the Flowering Plants of Stewart Island. Transactions of the New Zealand Institute 17: 213–228.