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Discover how plants shape our world – from ocean algae to rainforest roots and alpine moss and build your science future at Otago.

Why study Botany?

If you’ve ever wondered how forests thrive, why some plants flourish underwater, or what happens when ecosystems shift, Botany opens the door to those answers.

You’ll explore everything from microscopic algae and mosses to towering trees and sprawling seaweeds, uncovering how they function and how they interact with everything around them.

Studying Botany gives you a deep understanding of plant biology, ecology, evolution, physiology and biotechnology. It teaches you to understand how plants adapt to challenges like climate change, habitat loss and invasive species and how to breed better crops to feed growing populations.

It’s a subject that blends discovery, sustainability and science, revealing the vital role plants play in shaping life on Earth.

Career opportunities

With a Botany degree your future is wide open. You’ll build knowledge of plants, ecosystems and change, and develop versatile skills, which means you’re not just limited to ‘plant jobs’.

Each of these paths draws on the Botany foundation we build at Otago and takes you beyond campus into meaningful work. You might pursue:

  • Conservation or restoration ecology
  • Biosecurity and pest-management roles
  • Environmental consultancy or ecological impact assessment
  • Research in academia, government agencies or Crown Research Institutes
  • Science communication, education, and outreach

How you will learn

You will engage with Botany through lectures, tutorials, practical laboratory and hands-on fieldwork, guided by Otago’s interactive teaching style and close staff-student engagement.

Laboratory classes will teach fundamental techniques in plant physiology, genetics, microbiology and ecology.

Field trips take you into forests, coastal zones, grasslands and alpine environments to apply ecological methods in real ecosystems.

This is learning that feels alive, relevant and connected to places and issues that matter.

Recommended high school subjects for undergraduate study

Students should have strong high school grounding in biology and chemistry (or equivalent). Prior hands-on experience in natural history, ecology, or plant science is advantageous.

Choose a study option

Whether you're embarking on your academic journey with our comprehensive undergraduate programmes or aiming to reach new heights through our advanced postgraduate offerings, Otago is here to support your aspirations.

Undergraduate qualifications

For new and current students studying towards a Bachelor's or other first degree. Explore undergraduate qualifications at Otago, designed to build a strong foundation in your chosen field, preparing you for a successful career or further study.

Note: this subject can also be studied as a minor.

Ready to apply?

Take the first step towards your future in this subject.

Further study opportunities

Whether you are looking to bridge your undergraduate studies to advanced knowledge or aiming to specialise in a specific field, Otago offers a range of graduate and postgraduate options to suit your aspirations.

Explore botany in one of New Zealand’s most ecologically diverse landscapes

The Department of Botany at Otago is the only university department in New Zealand specialising solely in plant science and one of few in Australasia. We combine excellence in undergraduate teaching with a strong research reputation.

Our campus in Dunedin offers natural landscapes, a strong student community and plenty of opportunity to study in a place that inspires. You’ll graduate with both deep knowledge of plants and the practical, transferable skills that employers look for.

Supported by expert staff and community links, Botany at Otago offers a welcoming, collaborative environment for all students.

Programme details

Compare programmes for this subject.

LevelPapersPoints
100-level BIOL 123 Plants: How They Shape the World, or PTWY 132 Introduction to Plant Life 18
One of:
BIOL 112 Animal Biology
CELS 191 Cell and Molecular Biology
ECOL 111 Ecology and Conservation of Diversity
HUBS 191 Human Body Systems 1
HUBS 192 Human Body Systems 2
PTWY 131 Introduction to the Human Body
18
One of:
CHEM 111 Chemistry: Molecular Architecture
CHEM 191 The Chemical Basis of Biology and Human Health
PHSI 191 Biological Physics
STAT 110 Statistical Methods
STAT 115 Introduction to Biostatistics

Note: PTWY 131 and PTWY 132 are only available to students enrolled in the Diploma in Science.

18
200-level BTNY 201 Plant Functional Biology and Biotechnology 18
BTNY 202 Plant and Fungal Diversity 18
BTNY 203 Marine and Freshwater Botany 18
300-level Any four of:
BTNY 301 Plant Ecology
BTNY 302 Plant Interactions
BTNY 303 Topics in Field Botany
BTNY 365 Research Skills
BTNY 370 Special Topic

PLBI 301 Applied Plant Science
PLBI 302 Plants for the Future

Note: Other papers approved by the Head of Department may be substituted for one paper at 200-level and for one paper at 300-level.
72
Plus 180 further points; must include 54 points at 200-level or above.

Up to 90 points may be taken from outside Science
180
Total   360

A minor subject can be included in many of our undergraduate degrees. To earn a minor, you typically must complete a minimum of 90 points in that subject, with at least 18 points at the 300-level.

Your minor can be a subject more commonly taken for a different degree. For example, a BCom majoring in Marketing can include Japanese as a minor subject. To include this subject as a minor in your application, first find a major subject through our Subject Search or Study Match.

You can check what’s required to receive the minor accreditation in the programme details below.

Available as a minor subject for a Bachelor of Arts (BA), Bachelor of Music (MusB), Bachelor of Performing Arts (BPA), Bachelor of Theology (BTheol), Bachelor of Science (BSc), Bachelor of Commerce (BCom), Bachelor of Entrepreneurship (BEntr), Bachelor of Health Science (BHealSc), Bachelor of Arts and Commerce (BACom), Bachelor of Arts and Science (BASc) or Bachelor of Commerce and Science (BComSc) degree

LevelPapersPoints
100-levelBIOL 123 Plants: How They Shape the World, or PTWY 132* Introduction to Plant Life18
200-level

Two of:
BTNY 201 Plant Functional Biology and Biotechnology
BTNY 202 Plant and Fungal Diversity
BTNY 203 Marine and Freshwater Botany

36

300-level

Two of:
BTNY 301 Plant Ecology
BTNY 302 Plant Interactions
BTNY 303 Topics in Field Botany
BTNY 365 Research Skills
BTNY 370 Special Topic
or
One of BTNY 301, BTNY 302, BTNY 303, BTNY 365, BTNY 370;
one of PLBI 301, PLBI 302

36

 

* PTWY 132 is only available to students enrolled in the Diploma in Science.

 
Total 90

Papers

View a list of all related papers below.

BTNY papers

Paper Code Year Title Points Teaching period
BTNY201 2026, 2027 Plant Functional Biology and Biotechnology 18 points Semester 1
BTNY202 2026, 2027 Plant and Fungal Diversity 18 points Semester 2
BTNY203 2026, 2027 Marine and Freshwater Botany 18 points Semester 2
BTNY301 2026, 2027 Plant Ecology 18 points Semester 1
BTNY302 2026, 2027 Plant Interactions 18 points Semester 2
BTNY303 2026, 2027 Topics in Field Botany 18 points 1st Non standard period (9 November 2026 - 11 December 2026), Not offered in 2027, expected to be offered in 2028
BTNY365 2026, 2027 Research Skills 18 points Not offered in 2026, Semester 1
BTNY370 2026, 2027 Special Topic 18 points Not offered in 2026, Not offered in 2027
BTNY461 2026, 2027 Plant Physiology and Biotechnology 20 points Semester 1
BTNY465 2026, 2027 Plant and Environment 20 points Semester 2
BTNY467 2026, 2027 New Zealand Plant Ecology and Evolution 20 points Semester 2
BTNY469 2026, 2027 Principles of Nature Conservation 20 points Semester 1
BTNY470 2026, 2027 Special Topic 20 points Not offered in 2026, Not offered in 2027
BTNY480 2026, 2027 Research Project 40 points Full Year, 1st Non standard period (13 July 2026 - 9 June 2027), 2nd Non standard period (23 November 2026 - 29 October 2027), 1st Non standard period (12 July 2027 - 7 June 2028), 2nd Non standard period (22 November 2027 - 27 October 2028)
BTNY490 2026, 2027 Dissertation 60 points Full Year, 1st Non standard period (13 July 2026 - 9 June 2027), 2nd Non standard period (23 November 2026 - 29 October 2027), 1st Non standard period (12 July 2027 - 7 June 2028), 2nd Non standard period (22 November 2027 - 27 October 2028)
BTNY495 2026, 2027 Master's Thesis Preparation 40 points Full Year, 1st Non standard period (13 July 2026 - 9 June 2027), 2nd Non standard period (23 November 2026 - 29 October 2027), 1st Non standard period (12 July 2027 - 7 June 2028), 2nd Non standard period (22 November 2027 - 27 October 2028)

More information

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Regulations on this page are taken from the 2026 Calendar and supplementary material.

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