Hypericum rubicundulum
Biostatus
Native
Category
Vascular
Structural class
Herbs - Dicotyledons other than Composites
Flower colours
Yellow
Detailed description
Herbs, perennial, rhizomatous, glabrous. Stems usually red.
Similar taxa
Distinguished from Hypericum pusillum by the rhizomatous growth habit, leaves that are grey-green to olive-green and usually ruddy and without sinuate margins, slightly larger flowers, and seeds with distinct longitudinal ridges.
Distribution
Endemic. New Zealand: North Island (Kuripapango), South Island (Nelson to Southland except Marlborough and Westland).
Habitat
A species growing on the margins of lakes and tarns and other wet depressions and seepages in drought-prone and dry-climate areas of inland South Island.
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2022-2023 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website. This report includes replaces all previous NZTCS lists for vascular plants. Previous assessments can be found here.
Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – these interim threat classification statuses has not been assessed by the NZTCS panel.
- Conservation status of vascular plants in Aotearoa New Zealand, 2023. 2024. Peter J. de Lange, Jane Gosden, Shannel P. Courtney, Alexander J. Fergus, John W. Barkla, Sarah M. Beadel, Paul D. Champion, Rowan Hindmarsh-Walls, Troy Makan and Pascale Michel Department of Conservation. Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2023 | Threatened – Nationally Endangered | Qualifiers: DPR, DPS, DPT, RR
Threats
The habitat this speciest occupies is under considerable pressure throughout much of its range because of water abstraction for dairy farms and residential developments. More survey and monitoring of known populations is needed. Previously regarded (as Hypericum aff. japonicum (b) (CHR 140620; “tarn”)) as Range Restricted by de Lange et al. (2004), but continued evidence of decline has resulted in it assessment as ‘Threatened – Nationally Endangered’ by de Lange et al. (2018).
Detailed taxonomy
Family
Hypericaceae
Synonyms
None. First described in December 2008.
Endemic taxon
Yes
Endemic genus
No
Endemic family
No
Ecology
Flowering
November–April
Fruiting
November–May
Life cycle
Seeds are wind and water dispersed (Thorsen et al., 2009).
Propagation technique
Easy. Best grown in a small pot kept partially submerged in water. An attractive plant on account of the grey-green, reddish leaves and bright yellow flowers.
Wetland plant indicator status rating
Information derived from the revised national wetland plant list prepared to assist councils in delineating and monitoring wetlands (Clarkson et al., 2021 Manaaki Whenua – Landcare Research Contract Report LC3975 for Hawke’s Bay Regional Council). The national plant list categorises plants by the extent to which they are found in wetlands and not ‘drylands’. The indicator status ratings are OBL (obligate wetland), FACW (facultative wetland), FAC (facultative), FACU (facultative upland), and UPL (obligate upland). If you have suggestions for the Wetland Indicator Status Rating, please contact: [Enable JavaScript to view protected content]
OBL: Obligate Wetland
Almost always is a hydrophyte, rarely in uplands (non-wetlands).
Other information
Where To Buy
Not Commercially Available
Etymology
hypericum: From the Greek hyper (above) and eikon (picture), the plant was hung above pictures to ward off evil spirits
NVS code
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.
HYPRUB
Chromosome number
2n = 16
Previous conservation statuses
2017 | Threatened – Nationally Endangered | Qualifiers: DP, RR
2012 | Threatened – Nationally Vulnerable | Qualifiers: DP, RR
2009 | At Risk – Naturally Uncommon | Qualifiers: DP
2004 | Range Restricted
Referencing and citations
References and further reading
de Lange PJ, Norton DA, Heenan PB, Courtney SP, Molloy BPJ, Ogle CC, Rance BD, Johnson PN, Hitchmough R. 2004. Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76. https://doi.org/10.1080/0028825X.2004.9512890.
de Lange PJ, Rolfe JR, Barkla JW, Courtney SP, Champion PD, Perrie LR, Beadel SM, Ford KA, Breitwieser I, Schönberger I, Hindmarsh-Walls R, Heenan PB, Ladley K. 2018. Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series 22. Department of Conservation, Wellington, NZ. 82 p. https://www.doc.govt.nz/globalassets/documents/science-and-technical/nztcs22entire.pdf.
Heenan PB. 2008. Three newly recognised species of Hypericum (Clusiaceae) from New Zealand. New Zealand Journal of Botany 46(4): 547–558. https://doi.org/10.1080/00288250809509784.
Thorsen MJ, Dickinson KJM, Seddon PJ. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285–309. https://doi.org/10.1016/j.ppees.2009.06.001.
Attribution
Fact Sheet prepared for the NZPCN by P.J. de Lange (1 July 2008). Description from Heenan (2008).
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Hypericum rubicundulum Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/hypericum-rubicundulum/ (Date website was queried)