The New Zealand Plant Conservation Network

Species

Pomaderris paniculosa subsp. novaezelandiae

Etymology

Pomaderris: lid skin

Current Conservation Status

2018 - Threatened - Nationally Endangered

Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB

Previous Conservation Status

2012 - At Risk - Naturally Uncommon
2009 - At Risk - Naturally Uncommon
2004 - Range Restricted

Qualifiers

2012 - RR, Sp

Authority

Pomaderris paniculosa subsp. novae-zelandiae (L.B.Moore) N.G.Walsh

Family

Rhamnaceae

Brief Description

Low growing sprawling shrub with fuzzy twigs bearing wrinkled oval smooth-edged leaves inhabiting sites in Northland. Often appears partly dead. Leaves 14-45mm long by 8-15mm wide, underside covered by whiteish fuzz. Flowers brownish, in small clusters along a leafless stalk. Fruit small, dry.

Flora Category

Vascular - Native

Structural Class

Dicotyledonous Trees & Shrubs

Synonyms

Pomaderris oraria var. novae-zelandiae L.B.Moore

Distribution

Endemic. New Zealand: North Island (Te Paki (Surville Cliffs) and near Whangarei (Mt Manaia, Mt Aubrey, Bream Head)

Habitat

A plant of open, rocky ground, cliff faces and rock pillars. On the Surville Cliffs it is a common plant of open ultramafic (serpentinite) talus, cliff faces and less commonly plateau scrub. At Mt Manaia it is confined to the andesitic plugs and associated boulderfield

Features

Rather untidy, prostrate, sprawling, often widely scrambling to sub-erect shrub 1-2 × 1-2 m, main branches arising at ground level, these often layering. Adult leaves 9-50 × 6-20 mm, oblong; upper surface glabrous; lower surface with dense tomentum of sessile and stalked stellate hairs, often brown or ferruginous; margins sinuate to shallowly crenate, not revolute; petioles to 10 mm, stipules 1-2 mm long, soon deciduous. Juvenile leaves extremely variable, sometimes < 6 mm long, conspicuously toothed, thinly tomentose on both surfaces. Inflorescence an axillary or terminal, elongated, leafless panicle. Flowers dark orange-brown or green-brown, c.4 mm diameter; calyx spreading, calyx-tube covered in mealy, stellate hairs, lobes c.1.5 mm long, persistent to capsule maturity. Petals 0. Anthers ovoid. Style divided to > ½ length. Ovary with apical tuft of short-rayed stellate hairs, wholly immersed in the calyx tube at anthesis, slightly > ½ immersed at fruiting. Fruit cocci opening by opercula occupying four-fifths of their inner faces. Seeds 1.6 × 1.1 mm, usually one per flower, dark brown, smooth, not glossy.

Similar Taxa

Easily recognised by the sprawling, widely spreading, growth habit (often with plants bearing many dead or dying branches), slender branches; stipules which are deciduous; glabrous adult leaves which have entire margins; and by the persistent sepals. It is perhaps closest to P. rugosa Cheeseman which differs by its geographic isolation (Herekino, Silverdale, Coromandel Peninsula, Hauraki Gulf Islands, Firth of Thames, Aotea and Kawhia Harbours), usually erect rather than sprawling, prostrate growth habit, cream or pale yellow, rather than brownish flowers and by the fruits which have deciduous rather than persistent sepals

Flowering

October - December

Flower Colours

Brown,Orange

Fruiting

November - February

Propagation Technique

Can be grown from layered pieces, semi-hardwood cuttings and fresh seed. Does best in full sun, with excellent drainage.

Threats

Aside from its localised distribution, this plant is abundant and under no obvious threat.

Chromosome No.

2n = 36

Endemic Taxon

Yes

Endemic Genus

No

Endemic Family

No

This page last updated on 7 Jan 2014