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  4. Peperomia leptostachya

Peperomia leptostachya

Leaf detail, cultivated plant.<br>Photographer: Mike Thorsen, Date taken: 29/11/0206, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Peperomia blanda plant in the wild, Raoul Island, 2004.<br>Photographer: Bec Stanley, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-sa/4.0'>CC BY-SA</a>.
Peperomia blanda.<br>Photographer: Peter J. de Lange, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Peperomia blanda.<br>Photographer: Peter J. de Lange, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Peperomia blanda.<br>Photographer: Peter J. de Lange, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Peperomia blanda.<br>Photographer: Peter J. de Lange, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
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Synonyms

Has been referred to as Peperomia blanda var. floribunda (Miq.) H.Huber

Family

Piperaceae

Authority

Peperomia leptostachya Hook. et Arn.

Flora category

Vascular – Native

Endemic taxon

No

Endemic genus

No

Endemic family

No

Structural class

Herbs - Dicotyledons other than Composites

Chromosome number

2n = 66

Current conservation status

  • Conservation status of New Zealand indigenous vascular plants, 2017

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 | Non-resident Native – Coloniser | Qualifiers: OL, SO

Previous conservation statuses

2009 | Non-resident Native – Coloniser | Qualifiers: SO, OL

2004 | Non-resident Native – Vagrant

Distribution

In New Zealand known from Raoul Island (Kermadec Island group) only. Common on islands throughout the Pacific

Habitat

In New Zealand found as a low epiphyte on Kermadec Pohutukawa (Metrosideros kermadecensis W.R.B.Oliv.), on cliff faces and amongst rocks and rubble beneath cliff faces and ravines on Raoul Island.

Features

Succulent perennial herb forming sparingly to densely branched shrublets up to 500 x 600 mm. Stems light yellow gree to reddish-green, ascending or erect from creeping base, 150-250-500 mm long, up to 10 mm diameter at base, branches less toward apex, internodes 10-40 mm apart; surfaces finely puberulent (hairs 0.3-0.8 mm long). Leaves opposite or sometimes ternate, usually falling readily. Petioles 5-10 mm long, puberulent. Leaf lamina 15-60 x 12-30 mm, dark green to yellow-green, lower surface paler, elliptic-obovate to elliptic, or elliptic-ovate, apex broadly acute, obtuse or rounded, base cuneate to broadly cuneate; palmately 3-5-nerved, finely puberulent, moderately firm-fleshy, thin and membranous. Inflorescences axillary or terminal spikes, these numerous, 20-130 mm long, rachis 0.5-1 mm diameter, glabrous. Flowers moderately close to loosely spaced, peduncles 5-25 mm long, puberulent with finely spreading to appressed hairs; ovary broadly ovoid, apex oblique; stigmas subterminal. Fruit broadly obovoid 0.9-1 mm.

Similar taxa

It is not closely allied to any of the other species found in New Zealand. On Raoul Island it grows with P. urvilleana from which it is easily distinguished by its larger uniformly hairy leaves

Flowering

October - July

Fruiting

October - July

Propagation technique

Easy from rooted pieces, stem cuttings and (if available) fresh seed. Cold sensitive but an excellent pot plant fora warm, shaded site in the house

Threats

Still uncommon on Raoul Island, though recent (2004, 2009) field survey suggests it is actively increasing its range on that island (de Lange 2020).

Etymology

peperomia: From the Greek peperi (pepper) and homoios (resembling), referring to its resemblance to a true pepper (to which it is closely related)

leptostachya: Slender spiked

Comments

Formerly listed as a vagrant. It is now clear that it is actively spreading and as it is apaprently no longer constrained to a particular habitat on Raoul Island it is better regarded as a Coloniser. New Zealand plants were initially referred to P. leptostachya, then Sykes & West (1996) following Forster (1993) placed Raoul plants in P. blanda var. floribunda by Forster (1993) (see also comments by Murray & de Lange (2013). Recently Mathieu (2020) showed that Peperomia blanda var. floribunda was a superfluous name and that the widespread Pacific Basin plant that had been referred to it and to P. blanda was actually P. leptostachya. Peperomia blanda is a northern South American species (see also comments by de Lange 2020).

Attribution

Fact Sheet prepared by P.J. de Lange (30 August 2011). Description based on fresh specimens and live plants from Raoul Island.

References and further reading

de Lange, P.J. 2020: Peperomia leptostachya (Piperaceae) on Raoul Island, Kermadec Islands—a name reinstated. Trilepidea 197: 3-8

Forster, P.I. 1993: A taxonomic revision of the genus Peperomia Ruiz & Pav. (Piperaceae) in mainland Australia. Austrobaileya 4: 93-104.

Mathieu, G. 2020: Peperomia leptostachya (Piperaceae) revived. Candollea 75: 45-49.

Murray, B.G.; de Lange, P.J. 2013: Contributions to a chromosome atlas of the New Zealand flora – 40. Miscellaneous counts for 36 families. New Zealand Journal of Botany 51: 31–60.

Sykes, W.R.; West, C.J. 1996: New records and other information on the vascular flora of the Kermadec Islands. New Zealand Journal of Botany 34: 447–462.

NZPCN Fact Sheet citation

Please cite as: de Lange, P.J. (Year at time of access): Peperomia leptostachya Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/peperomia-leptostachya/ (Date website was queried)

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