Coprosma pedicellata
Synonyms
Coprosma
Family
Rubiaceae
Flora category
Vascular – Native
Endemic taxon
Yes
Endemic genus
No
Endemic family
No
Structural class
Trees & Shrubs - Dicotyledons
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.
COPPED
Chromosome number
2n = 44
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 – Declining | Qualifiers: CD, PD, RR
Previous conservation statuses
2009 | At Risk – Declining | Qualifiers: CD, PD, RR
2004 | Gradual Decline
Brief description
Bushy shrub with wide angled branches bearing abundant clusters of pairs of small oval leaves inhabiting wetlands in the east of New Zealand. Trunk often curved and orange underneath the bark. Leaves 5-10mm long, often with pale blotches. Fruit small, violet, hanging on a short stalk.
Distribution
Endemic. Largely confined to the eastern portion of the North and South Islands. In the North Island from Pehiri, near Gisborne to the Wairarapa, in the South Island from North Canterbury south to the Catlins and western portion of Southland.
Habitat
Kahikatea (Dacrycarpus dacrydioides) dominated lowland alluvial forest. Often restricted to the margins of small oxbow lakes and ponds, or former stream/river channels. Very tolerant of waterlogging and plants may be found growing within water.
Features
Shrub or small tree up to 9m tall. Trunk erect to twisted, often leaning or twisted, bark brown or grey-brown, inner bark orange. Branches numerous, spreading, somewhat divaricating, and rather leafy. Adult leaves in opposite pairs, densely clustered on short shoots, lamina dull yellow-green and cream flecked, 10(-12) x 3-5(-7) mm, obovate to narrowly obovate, apex obtuse to retuse, domatia 0-2(-3). Interpetiolar stipules triangular, pubescent with a dark central denticle. Plants dioecious, flowers axillary, solitary or paired, pedicellate, pendulous, funnel-shaped, pedicels and calyces long persistent. Male flowers larger and more numerous than females. Corolla tube 2.5-3 mm, oblong, green suffused with purple, corolla lobes 3-5, cut to half tube length. Stamens prominent, 2-3(-4). Females flowers similar to males but with reduced corolla tubes, ovary ovoid, stigmas 2-3, 5 mm long. Fruit a globose dark purple to black drupe. Pyrenes (1-)2(-3), 3-4 x 2-3 mm.
Similar taxa
Closest to C. parviflora var. parviflora, which is confined to forest and shrublands from Auckland to North Cape, and is never sympatric with C. pedicellata. However, frequently sympatric with C. parviflora var. dumosa (known as C. sp. (t), C. “tayloriae” or by the nomen nuda C. oliveri and/or C. tayloriae), which has pale yellow underbark, somewhat flattened more strongly divaricating branches, and scarcely stalked drupes which are either opaque, white, lemon or pink.
Flowering
(August-)September-October (-November)
Flower colours
Green, Violet/Purple
Fruiting
(February-)March-September(-October). Fruit takes 12-14 months to ripen and so it is not uncommon to find ripe fruit and green fruit alongside flowers on the same plant.
Life cycle
Fleshy drupes are dispersed by frugivory (Thorsen et al., 2009).
Propagation technique
Easy from fresh seed. Can be grown from semi-hardwood cuttings. Quite fast growing, doing best in fertile, moist alluvial soils but once established remarkably tolerant of a wide variety of soils and moisture regimes.
Threats
Although not as threatened as was initially believed, this species is still extremely vulnerable to habitat loss from forest clearance, drainage, and other more subtale changes in local hydrology. Seedlings are very vulnerable to browsing from livestock. These animals can on occasion destroy subadults and adult specimens through bark stripping. Some populations comprise numerous adults, with no or little recruitment as a consequence of weeds which suppress seed germination.
Etymology
coprosma: From the Greek kopros ‘dung’ and osme ‘smell’, referring to the foul smell of the species, literally ‘dung smell’
pedicellata: With stalked clusters of florets
Attribution
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): Coprosma pedicellata Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/coprosma-pedicellata/ (Date website was queried)