Classification
 Nomenclature
Scientific Name:
Lobelia arenaria (Hook.f.) Heenan & de Lange in Knox et al., New Zealand J. Bot. 46 ( [2008])
Synonymy:
  • Pratia arenaria Hook.f., Bot. Antarct. Voy. I. (Fl. Antarct.) Part I, 41, t. 29 (1844)
 Description

Glabrous, prostrate or semi-prostrate herb often forming large mats to c. 1 m diam., compact when in exposed situations. Stems creeping, rooting at nodes, rather stout, somewhat succulent, usually branched. Petioles 1–5 mm long. Lamina (4)–7–25–(35) × (4)–7–20–(25) mm, obovate-oblong to orbicular, sinuate to bluntly and obscurely dentate or sometimes rather coarsely toothed, membranous to somewhat succulent. Peduncles 1–2 cm long, slender. Fls solitary. Calyx lobes 2–3 mm long, narrow-oblong to narrow-triangular. Corolla white, deeply lobed; lobes c. 10 mm long, ± narrow-elliptic, acute; lower lip spreading; upper lip ascending. Fr. ± 6–10 × 5–8 mm, obliquely subovoid to subglobose, reddish purple to pinkish purple, somewhat compressed.

[From: Webb et al. (1985) Flora of New Zealand. Volume 4 as Pratia arenaria Hook.f.]

 Biostatus
Indigenous (Endemic)
 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Naturally uncommon]
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. [Naturally Uncommon]
Hooker, J.D. 1844–1845: The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. I. Flora Antarctica. Part I. Botany of Lord Auckland’s Group and Campbell’s Island. Reeve, Brothers, London.
Knox, E.B.; Heenan, P.B.; Muasya, A.M.; Murray, B.G. 2008: Phylogenetic position and relationships of Lobelia glaberrima (Lobeliaceae), a new alpine species from southern South Island (New Zealand). New Zealand Journal of Botany 46: 77–58.