Get Involved
Become a Member
Branches
Downloads
Tree Course
Some of the activities of the Society
The outings, field excursions, lectures and presentations of the different branches are popular and well-attended. Other branch and national activities include:
- Conservation of trees and tree-dominated ecosystems.
- The identification and labelling of trees.
- Supply of tree name tags.
- Locating, assessing and measuring the largest trees of any species.
- Advice regarding “problem” trees in gardens, urban areas and farms.
- Training courses in tree identification, tree appreciation and tree measurement.
- Several authoritative publications.
- Advice and assistance in respect of all matters related to trees and dendrology.
The DSSA Executive Committee
The Executive Committee is elected by the members and carry out the powers on behalf of the Society and it manages the day-to-day affairs of the Society in accordance with the resolutions of the members taken from time to time at General Meetings of the Society.

Naas Grové
President
Elected Chairman of the Society ensuring the organization reaches its goals by keeping the organization on track as a whole and providing leadership.

Henry Francis
Training
Plan, market and promote tree identification and tree measurement courses.
Development of tree identification & big tree measurement course material
Liaise with qualified presenters / examiners for the conducting big tree measurement and tree identification courses, Dendrologist Grade I, II & III.

Dr Theunis Morgenthal
NRBTSA
Big Tree Register and Tree Names, responsible for managing the National Register of Big Trees in South Africa (NRBTSA©) and the FSA Tree Species List and preferred common names in the Republic of South Africa.

Glen Haefele
Secretariat
Manage all administrative tasks, support organizational functions and ensure effective communication with all stakeholders.
Treasury
Finovest Business Accountants
Responsible for managing financial records, preparing reports, and ensuring compliance with financial regulations to support the society’s financial health.
Application for membership
Deepen your connection to trees and the environment. Become a member of the Dendrological Society of South Africa (DSSA) today and enjoy:
- Engaging Social Outings: Explore the wonders of trees with fellow enthusiasts on organized outings.
- Up-to-Date Tree Knowledge: Gain valuable knowledge about trees and their importance through lectures, courses, and publications.
- Access to Indigenous Tree Expertise: Dive deeper into the fascinating world of South Africa’s native trees and their crucial role in the ecosystem.
POPIA Compliance
The Society noted the content of the PROTECTION OF PERSONAL INFORMATION ACT, 2013 (ACT NO. 4 OF 2013) POPIA, and undertakes to comply with the regulations of the Act. As a result, the Society requires the following minimum information from existing and new members:
- the respective branch management needs a mobile phone number to invite the member to join a WhatsApp group to communicate information regarding excursions that are arranged and other relevant information about branch activities
- the Society’s Administration as well as the branch management need an e-mail address to communicate with members on membership, membership fees and other relevant membership affairs.
- the nearest town or city where the member resides to make correct branch allocations
- The Society does not require a member’s postal address, residential address, bank details, identity numbers and marital / relationship status
- All personal information, as defined in Section 1 of the Personal Information Protection Act, Act 4 of 2013 (‘POPIA’); received, collected, used, distributed, destroyed and / or processed; of any member, organization, provider, third party, service provider and / or data subject, will be processed in accordance with the terms of POPIA, and specifically in terms of the 8 conditions for the lawful processing of personal information.
- The Society refrains from disclosing, copying, distributing and / or using any member’s information in any way and / or form that is contrary to the conditions as defined in the Personal Information Protection Act 4 of 2013 (‘POPIA’)
Types of membership
Individual/Family
- Individual membership or
- Family membership (parents and school children);
- All new and existing members UNDER the age of 70 years.
- Please Note: For online payments, a R10.00 transaction fee is added to the payment, bringing the total to R310.00.
Individual/Family 70+
- Individual membership or
- Family membership (parents and school children);
- All new and existing members OVER the age of 70 years.
- Please Note: For online payments, a R5.00 transaction fee is added to the payment, bringing the total to R105.00.
Students
- All scholars and undergraduate students;
- Proof of registration may be required.
- Please Note: For online payments, a R5.00 transaction fee is added to the payment, bringing the total to R95.00.
Corporate
- Organisations (parastatals, private game reserves/lodges, schools, etc.)
- Please Note: For online payments, a R17.00 transaction fee is added to the payment, bringing the total to R517.00.
Honorary membership may be awarded to any person by the Society, for recognition of life-long dedication to tree science and conservation
Accredited Dendrologists
Only highest qualification listed
Accredited big tree measurement surveyors
Andries van Niekerk – Waterbergtak
Bernd Wenhold – Pilanesbergtak
Clive Richer – Pilanesbergtak
Dr. Carel Pretorius – Waterbergtak
Douwe van Wyk – Waterbergtak
Dweenie Bester – Pilanesbergtak
Francois van Wyk – Pilanesbergtak
Gawie Oberholzer – Pilanesbergtak
Grietjie Kroon – Pilanesbergtak
Hartwig von Dürckheim – Pilanesbergtak
Henning Visser – Pilanesbergtak
Henry Francis – Pilanesbergtak
Isak Lombard – Magaliesbergtak
Izak van der Merwe – Magaliesbergtak
Jaap Kroon – Pilanesbergtak
Jasper Raats – Magaliesbergtak
Johan Bester – Pilanesbergtak
Naas Grové – Pilanesbergtak
Pieter Joubert – Magaliesbergtak
Tessa Joubert – Magaliesbergtak
Dr. Theunis Morgenthal – Magaliesbergtak
Waldie Le Grange – Magaliesbergtak
Primary Examination Dendrologist Level I
Allen Gatley – Magaliesbergtak
Anja Gruttke – Magaliesbergtak
Belinda Cornelius – Pilanesbergtak
Bernd Wenhold – Pilanesbergtak
Clive Richter – Pilanesbergtak
Douwe van Wyk – Waterbergtak
Egmond van Bart – Oilenhouttak
Frans Myburgh – Waterbergtak
Dr. Frans Saaijman – Waterbergtak
Gerhardus Visagie – Waterbergtak
Gert Middelberg – Magaliestak
Hester Burger – Magaliesbergtak
Ilse Pansegrouw – Magaliesbergtak
Johan Bester – Pilanesbergtak
Johan Heydenrych – Waterbergtak
Johan Rösemann – Magaliesbergtak
Dr. Johan van der Hoven – Magaliestak
Louis Boshoff – Waterbergtak
Norbert Hahn – Soutpansbergtak
Ds. Petrus Kriel – Soutpansbergtak
Phillip van Niekerk – Pilanesbergtak
Pieter du Toit – Soutpansberg Branch
Renza Boshoff – Waterbergtak
Ria Erasmus – Waterbergtak
Sarel van Wyk – Pilanesbergtak
Santa von Bart – Olienhouttak
Santa Wenhold – Pilanesbergtak
Troos van der Merwe – Erythrinatak
Wikus Burger – Pilanesbergtak
Lientjie Venter – Waterbergtak
Marna Mӧller – Waterbergtak
Nico Mӧller – Waterbergtak
Richard Horton – Waterberg Branch
Sonia van Wyk – Waterbergtak
Waldie la Grange – Magaliesbergtak
Secondary Examination Dendrologsit Level II
Prof. Henk Potgieter – Waterbergtak
J C Kok – Mahgaliesbergtak
Johan Bester – Pilanesbergtak
Joan Greeff – Magaliesbergtak
Marissa Greeff – Magaliesbergtak
Nelia Lombard – Magaliesbergtak
Ronel Eksteen – Waterbergtak
Dr. Sarel Cilliers – Olienhouttak
Dr. Susan Gräbe – Magaliesbergtak
Wilna Heymans – Waterbergtak
Dr. Johan van der Hoven – Magaliestak
Tertiary Examination Dendrologist Level III
Andries van Niekerk – Waterbergtak
Anne-Marie Boshoff – Waterbergtak
Dr Carel Pretorius – Waterbergtak
Dweenie Bester – Pilanesbergtak
Dr. Erika van den Berg – Magaliesbergtak
Erwin Grobbellaar – Waterbergtak
Gert Pietersen – Waterbergtak
Gertie Oosthuizen – Waterbergtak
Henry Francis – Pilanesbergtak
Isak Lombard – Magaliesbergtak
Jasper Raats – Magaliesbergtak
Joy Cornall – Waterbergtak
Naas Grové – Pilanesbergtak
Dr Theunis Morgenthal – Magaliesbergtak
Wynand van Niekerk – Waterbergtak
Honorary Dendrologists
Dr. Francois du Randt – Zululandtak
Dr. Willie Barnard – Manketti-tak
Lloyd Edwards- Gqeberha-Atalaya Branch
Willem Frost – Manketti-tak
Join us! Applying for membership is easy. Simply choose your preferred method:
- Online Application: Select your membership option below for quick and easy registration.
- Downloadable Application: Download the membership form, complete it at your own pace, and email it to secretary@dendro.co.za
Apply Online
Downloadable Application Form
If you are struggling with the online application, please download the application form, complete and mail it to administration@dendro.co.za
Financial Year | Finansiële Jaar 1 Mar – 28 Feb
Banking Details / Bank Besonderhede
Dendrological Society of South Africa; FNB Waterfall Mall, Rustenburg; Account 62060700723; Branch Code 258055
Tree Knowledge Exams
The Dendrological Society of South Africa offers three tiers of tree exams for its members. These exams are designed to expand members’ knowledge and certify their expertise in indigenous trees. Each exam includes both practical and theoretical components. Upon successful completion, members receive an official certificate.
For more information, please contact training@dendro.co.za.
To view a list of our qualified dendrologists, click here.
Benefits of DSSA Memberships
Types of Membership
- Individual membership;
- Family membership (parents and school children);
- Student membership (bona fide students, with proof of registration);
- Corporative membership;
- Honorary membership may be awared to any person by the Society, for recognition of life-long dedication to tree science and conservation
- Any person or organisation wishing to become a member can complete a membership application form. All new applications shall be reviewed and approved by the Executive Committee of the Society.
Benefits of Membership to the Dendrological Society
Members are kept informed via newsletters and the Dendron magazine about events regarding both trees indigenous to Southern Africa and introduced tree species. In addition information is also supplied in respect of:
-
- New species;
- New findings in the fields of Botany; ecological aspects of trees; taxonomy of tree species; distribution recordings
- The use of trees in general as well as in horticulture; and
- The conservation of trees and tree-dominated ecosystems.
- Arbor month and trees of the year
- Conservation status and protected trees in South Africa
- Locating, assessing and measuring the biggest trees of any indigenous species in South Africa
- Propagation of indigenous trees
- Outings, field excursions, lectures and presentations
- The identification and labelling of trees
- Supply of tree name tags
- Advice with regard to “problem” trees and alien invasive plants in gardens, urban areas and farms
- Training courses in tree identification, tree appreciation, tree measurement and alien invasive plants
- Several authoritative publications; and
- Advice and assistance in respect of all matters related to trees and dendrology.
Personal Enrichment
The Dendrological Society affords members the opportunity to go on outings into the veld under the leadership of knowledgeable dendrologists and to spend time with other people sharing the same interest in nature. These outings are mainly focussed on indigenous species but knowledge can also be gained about trees and the plant kingdom in general. Snippets of information can be gained from all people participating in the outing, although many may not yet have an extensive knowledge of the topics at hand. Tips are also given to practice or promote tree identification as a hobby.
Members gain satisfaction from their participation in and promotion of tree knowledge and conservation issues. People get to know their environment and opportunities are created to come into contact with many tourist attractions. Personal enrichment is gained by accumulating knowledge and by making contact with the wonders of nature. By being so close to nature is an added benefit to spiritual enrichment.
Members are also given the opportunity to gain knowlegde, enrol for tree indentification courses and take the examination for Level I, II & III dendrologist.
Conservation of Trees
The Society acts as a mouthpiece on behalf of members (and trees)through registration as an interested and affected party communicating with authorities regarding the promotion of tree issues and the conservation of tree species.
Social
Outings are social events bringing together people within a particular area. Friendships are formed with people throughout the country. People sharing the same interests are able to enjoy pleasant company and have meaningful conversations.
Regional Branches
OF the dendrological Society of South Africa (DSSA, 2024)
| Branch Name | AREA |
| Gqeberha Atalaya | Gqeberha (Port Elizabeth), Jeffreysbay |
| Bauhinia | Mbombela (Nelspruit), Komatipoort |
| Boekenhout | Witbank, Middelburg |
| Celtis | Pietermaritzburg, KwaZulu Natal Midlands |
| Elongatus | Worcester, Ceres, Wellington & Greater Boland |
| Encephalartos | Swaziland |
| Erythrina | Polokwane (Pietersburg). Incorporated with Boekenhout |
| Kameeldoring | Mokopane (Potgietersrus). Incorporated with Waterberg |
| Kanniedood | Mookgophong (Naboomspruit). Incorporated with Waterberg |
| Karee | Bethlehem, South-East Free-State |
| Kierieklapper | Thabazimbi, Rooiberg, Koedoeskop. Incorporated with Manketti |
| Kremetart | Alldays, Musina. Incorporated with Waterberg |
| Langberg | Elgin, Swellendam |
| Magaliesberg | Pretoria, Johannesburg, Gauteng |
| Manketti | Lephalale (Ellisras), Swartwater, Tom Burke |
| Matumi | Hoedspruit. Incorporated with Manketti |
| Musasa | Zimbabwe |
| Outeniqua | Mossel Bay, Grootbrak, Knysna, George |
| Pilanesberg | Rustenburg, Groot Marico, Zeerust, Brits, Hartebeespoort |
| Soutpansberg | Louis Trichardt, Blouberg. Incorporated with Manketti |
| Springbokvlakte | Marble Hall, Baltimore, Marken |
| Taaibos | Potchefstroom, Orkney, Klerksdorp, Stillfontein. Incorporated with Pilanesberg |
| Umdoni | Durban. Incorporated with Zululand |
| Waterberg | Modimolle (Nylstroom), Bela-Bela (Warmbad) |
| Welwitschia | Namibia |
| Western Province | Stellenbosch |
| Wolkberg | Tzaneen, Lydenburg, Steelpoort. Incorporated with Manketti |
| Zululand | Kosibay, Hlabisa, St Lucia |


