Vascular – Native
Herbs - Dicotyledons other than Composites
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
2n = 52-56
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley.
2012 | At Risk – Naturally Uncommon | Qualifiers: RR
Previous conservation statuses
2009 | At Risk – Naturally Uncommon
2004 | Data Deficient
Endemic to the Auckland and Campbell Islands.
A species of sub Antarctic herbfields and turfs.
Perennial herb arising from a stout, thick somewhat woody taproot. All parts covered in soft backward or forward projecting appressed hairs. Stems slender, prostrate, with few to many branches. Basal leaves not persistent for duration of growing season, Leaf stalks (petioles) up to 17 cm long, leaf 4 cm diameter, kidney-shaped to circular or broadly ovate, deeply lobed, almost to midrib, sometimes more shallowly divided. Lobes 3-5, narrow to broadly obovate or oblong, apex rounded or shortly spine-tipped (mucronate). Stem leaves smaller, with fewer lobes. Flower stalks (peduncles) 1-6(-9) cm long. Flowers 1-2. Sepals 3-5(-6) × 0.8-2(-2.5) mm, lanceolate or elliptic-oblong, purple or with a purple marginal line. Petals white, (4-)6(-9) × 2.5-4.5 mm, broadly obovate. Seed 1.5-1.9 mm long, oblong.
Geranium microphyllum s.s. is the only Geranium species found on the sub Antarctic islands, so it is unlikely to be confused with any other species in the field. Other mainland plants referred to this species are believed to be examples of one or more distinct, and possibly unnamed species (B.P.J. Molloy pers. comm.).
October - February
No information available
Seed dispersed by wind, ballistic projection and possibly attachment (Thorsen et al., 2009).
Easily grown from seed. Plants are short-lived but readily set seed.
Geranium microphyllum s.s. is only known from the sub Antarctic islands. It is rarely collected.
geranium: From the Greek geranos ‘crane’, the fruit of the plant resembling the head and beak of this bird, hence the common name cranesbill.
microphyllum: Small leaf
Where To Buy
Not commercially available.
Fact sheet prepared by P.J. de Lange for NZPCN (1 June 2013)
References and further reading
Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285-309
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Geranium microphyllum Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/geranium-microphyllum/ (Date website was queried)