Classification
Class
Magnoliopsida Brongn.
Order
Geraniales Juss. ex Bercht. & J.Presl
Family
Geraniaceae
Genus
Geranium L.
 Nomenclature
Scientific Name:
Geranium sessiliflorum var. arenarium G.Simpson & J.S.Thomson, Trans. & Proc. Roy. Soc. New Zealand 73: 158 (1943)
Synonymy:
  • ≡ Geranium sessiliflorum var. arenarium (G.Simpson & J.S.Thomson) Carolin, Proc. Linn. Soc. New South Wales 89: 356 (1965)
 Description

Stock very stout, up to c. 1 cm. diam., multicipital, branches up to ± 6 cm. long, clad in persistent lf-bases and stipules. Lvs in rosettes at tips of stock branches, on slender, densely retrorsely hairy petioles up to ± 6 cm. long. Lamina up to ± 15 mm. diam., rather densely clad in appressed hairs giving the surface a greyish colour, irregularly 3–5–7-lobed and again ± crenately toothed. Peduncles us. 1-fld, 2–3 cm. long, at first densely retrorsely hairy. Sepals ± 5 mm. long, oblong to ovate, obtuse, awned, densely clad in appressed hairs; petals ± 6 mm. long, white; carpels ± 10 mm. long, including beak. Seeds ± 2 mm. long, smooth.

[From: Allan (1961) Flora of New Zealand. Volume 1.]

 Biostatus
Indigenous (Endemic)
 Bibliography
Aedo, C. 2023: A Monograph of the genus Geranium L. (Geraniaceae). Consejo Superior de Investigaciones Científicas (CSIC), Madrid.
Carolin, R.C. 1965: The genus Geranium L. in the south western Pacific area. Proceedings of the Linnean Society of New South Wales 89: 326–361.
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. [Declining]
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. [Declining]
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. [Declining]
Simpson, G.; Thomson, J.S. 1943: Notes on some New Zealand plants and descriptions of new species. Transactions and Proceedings of the Royal Society of New Zealand 73: 155–171.