Latest ICPS News

The ICPS is offering Virtual Events on Zoom.

Lost Pitchers Found: The Rediscovery of Nepenthes borneensis and New Insights into Nepenthes boschiana   
21 October 2026 10:00 AM Eastern Time (US and Canada)   
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After registering, you will receive a confirmation email containing information about joining the meeting.

Nepenthes borneensis is currently treated as a synonym of N. boschiana, though its taxonomic standing remains ambiguous due to incomplete descriptions and an absence of documented live specimens. Furthermore, N. boschiana itself remains poorly understood, as limited herbarium collections and a lack of recent botanical surveys obscure its true diversity. By collecting new specimens across multiple field sites, our project aims to resolve these gaps and clarify the true taxonomic status of both taxa.

Bio: Master student in Plant Biology program, Bogor Agricultural University, Indonesia. I have interest in polymorphic taxa, especially the highly diverse Maxima complex species. The presentation was a part of our project, aims to delimit and make clear taxonomic boundaries inside Nepenthes boschiana sensu lato through integrative approach.

Overlapping flower and pollen production in two imperiled pitcher plants raises conservation challenges 
Dec 9, 2026 12:00 PM Eastern Time (US and Canada) 
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Authors: Becca Hale, Caroline Kennedy, Jen Rhode Ward

The southern Appalachian’s mountain bogs are habitat for numerous imperiled plants, including two taxa in the Sarraceniaceae (Pitcher Plant) family: Sarracenia purpurea var. montana and S. rubra ssp. jonesii. These pitcher plants occupy broadly overlapping ranges and naturally co-occur at six distinct sites in North and South Carolina. Both taxa are federally listed in the U.S., mostly due to habitat loss and poaching. In a multi-year study we tracked the reproductive effort, flowering phenology, and reproductive output of these interfertile taxa. We found that reproductive effort varies among years and sites, and that production of pollen and flowers does not always result in higher seed output. We also demonstrate that phenological overlap in the timing of flower production and pollen viability could enable hybridization, and that the more imperiled taxon produces fewer seeds per flower. Results have implications for conservation of these pitcher plants, management of hybridization in these and other systems, and general principles of reproductive allocation.

Non-members of the ICPS are welcome.

The Virtual Events are hosted by ICPS Education Director, Kenny Coogan.

Our webinars will be recorded. They will be posted on the ICPS's social media (FB + YouTube) accounts about a week after the events.

The Carnivorous Plant Newsletter (CPN) is the official publication of the International Carnivorous Plant Society. CPN is published in March, June, September, and December.

Features of CPN include horticultural articles, research papers, field trip reports, conservation news, book and literature reviews, communications from members, cultivar and species descriptions, and meeting announcements.

Contents of Volume 55 Number 3, September 2026

• ICPS Carnivorous & Exotic Plant Symposium and Expo wrap-up — Kenny Coogan
• Geometric morphometric analysis of two highland Nepenthes species and their natural hybrid — Kevin D. Hinterman
• The carnivorous plant tree of life: The placement of carnivorous plant genera within the flowering plant lineage — James Haig Streeter
• Nutrient application to roots promotes production of non-carnivorous leaves in Cephalotus follicularis Labill. (Cephalotaceae) — Kuga Wood and Taiga Wood and Michael Commins and Emmi Kurosawa
• New cultivars — No Chang and Yan-Min Ma and Zdeněk Abraham and Wei Jie Ding and Bob Ziemer

View the Contents of All CPN Issues

The Carnivorous Plant Newsletter (CPN) is the official publication of the International Carnivorous Plant Society. CPN is published in March, June, September, and December.

Features of CPN include horticultural articles, research papers, field trip reports, conservation news, book and literature reviews, communications from members, cultivar and species descriptions, and meeting announcements.

Contents of Volume 55 Number 2, June 2026

• ICPS Conference 2026 Leiden — Felix Bokhorst
• ICPS welcomes new alternate board member Ashley Davis — Kenny Coogan
• Carnivores in the Classroom: Growing curiosity, community, and conservation — Kenny Coogan
• A significant range extension for Utricularia capilliflora F.Muell. — Glen Moss and Richard Nunn
• Longitudinal allometry of inferior lamina substructures in Sarracenia (Sarraceniaceae) — C. A. Trexler
• Splitting Sarracenia alabamensis subsp. wherryi (D.E. Schnell) Case & R.B. Case 2005 into two new species (Sarraceniaceae) — C. A. Trexler
• Refining form and stability: A decade of selective breeding in Nepenthes veitchii — Chiem Nguyen Anh Vu
• New cultivars — Chiem Nguyen Anh Vu and Y. Chen and Václav Lenk and Yan-Min Ma and Alexander Fisch and Juan Camilo Páez Jiménez

View the Contents of All CPN Issues

The Carnivorous Plant Newsletter (CPN) is the official publication of the International Carnivorous Plant Society. CPN is published in March, June, September, and December.

Features of CPN include horticultural articles, research papers, field trip reports, conservation news, book and literature reviews, communications from members, cultivar and species descriptions, and meeting announcements.

Contents of Volume 55 Number 1, March 2026

• 6th Annual World Carnivorous Plant Day May 6, 2026 — Kenny Coogan
• Carnivorous & Exotic Plant Symposium & Expo Kernersville, North Carolina—May 16–17, 2026 Update — Ernie Pages
• Restoring North Alabama’s Sarracenia oreophila bogs 2025 — Augustus Kirby
• Fundraising for the preservation of endangered Sarracenia — Katy Maxwell
• Uptake of lead by Nepenthes via their pitchers — Elizabeth M. Cusick and Francis Q. Brearley
• UV-induced fluorescence in the flowers of certain pygmy and tuberous Drosera and in the traps of Drosera barrettiorum — Andreas Fleischmann
• New cultivars — Aitor Tomás Reig and Alain Souralaysakd-Kim and Alexander Fisch and Théo Suwara and Zhikai Ma·Lishui
• Carnivorous plant with a carnivorous insect eating a carnivorous vertebrate — Mike Wang

View the Contents of All CPN Issues

The Carnivorous Plant Newsletter (CPN) is the official publication of the International Carnivorous Plant Society. CPN is published in March, June, September, and December.

Features of CPN include horticultural articles, research papers, field trip reports, conservation news, book and literature reviews, communications from members, cultivar and species descriptions, and meeting announcements.

Contents of Volume 54 Number 4, December 2025

• A preview of the ICPS Conference 2026 — Felix Bokhorst
• Carnivorous & Exotic Plant Symposium & Expo Kernersville, North Carolina – May 16–17, 2026 — Ernie Pages
• Observations of subterranean pitchers in cultivated Nepenthes rhombicaulis — Michal R. Golos and Paul Leach
• Adaptive strategies of Nepenthes: A review — B. Wyatt Block
• New cultivars — Marcel van den Broek and Chris Rawlings and Yuri Sarzi and Rob Emberson and Flavio Boschi and Danilo Cazzaniga and Valerio Guidolin and Julian Müller and José Antonio Negrete Moreno and Alexander Fisch
• Cultivar names registered in 2024 — Jan Schlauer

View the Contents of All CPN Issues

The Carnivorous Plant Newsletter (CPN) is the official publication of the International Carnivorous Plant Society. CPN is published in March, June, September, and December.

Features of CPN include horticultural articles, research papers, field trip reports, conservation news, book and literature reviews, communications from members, cultivar and species descriptions, and meeting announcements.

Contents of Volume 54 Number 3, September 2025

• Erratum — Bob Ziemer
• ICPS Conference 2026: no plant is an island — Felix Bokhorst
• World Carnivorous Plant Day photo contest 2025 — Kenny Coogan
• New cultivars — Adrian Fawcett and Peter Hu and Yan-Min Ma and Maciej Stelmach
• Discovering the Lost World — François Sockhom Mey

View the Contents of All CPN Issues