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.
Current conservation status
The threat classification 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) – more information about this can be found on the NZTCS website 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. Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – a suggested threat classification status has not been assessed by the NZTCS panel.
2017 | At Risk – Relict | Qualifiers: DP, PD
Previous conservation statuses
2012 | At Risk – Relict
2009 | At Risk – Relict | Qualifiers: DP, RR, Sp
2004 | Gradual Decline
Northern half of North Island (very rare); Chatham Island
Coastal to lowland restiad-dominated bogs, in open ground, epsecially bare, freshly exposed peat, but also found threaded through liverworts and Sphagnum moss. On Chatham Island, it has been found growing on peaty soil on the margins of streams and in similar peaty turf with Oreomyrrhis on rock platforms exposed to salt spray and on occasion wave wash.
Wetland plant indicator status rating
OBL: Obligate Wetland
Almost always is a hydrophyte, rarely in uplands (non-wetlands).
Tiny leaves (4–6 mm long); flowers are helmet-like, usually 2–3 together, pale lilac to pale lavender, on erect slender stalks 2–3 cm tall; capsules dry, ovoid and filled with tiny seeds. Flowers occur from November to February and the globular fruit are persistent from autumn into winter.
In New Zealand this species has no obvious close relatives. The rather small somewhat delicate, inflated pale white to lavender flowers (sometimes with a rather faint yellow eye) are especially distinctive. The typically linear leaves are very small, narrow and usually bright green, the traps are also very small (0.6 x 0.4 mm) and can be very hard to detect in the field. Outside New Zealand it has been confused with Australian U. lateriflora.
November - February
Autumn - Winter
Difficult and should not be removed from the wild.
Habitat destruction: bog drainage; intensive farming; invasion by or regeneration of dense taller vegetation.
utricularia: A small bladder
delicatula: Somewhat delicate
Where To Buy
Not commercially available
Fact sheet prepared by P.J. de Lange for NZPCN (1 June 2013)
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Utricularia delicatula Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/utricularia-delicatula/ (Date website was queried)