Plant trivia reveals the hidden wonders of the natural world, from the world’s oldest living tree to the fastest-growing bamboo and the rarest flowers that bloom once in a decade. These questions dive deep into the fascinating biology, adaptations, and ecological marvels of plant life across the planet.
Whether it’s the massive Pando aspen colony, the mysterious corpse flower’s powerful odor, or the microscopic Wolffia that challenges what we think of as a “plant,” this trivia set showcases how incredible and diverse the plant kingdom truly is. Perfect for nature lovers, students, or anyone curious about the living green world that sustains us.
1. What species produces the world’s largest single flower by diameter?
2. Which plant has the world’s largest unbranched inflorescence?
3. What is the tallest tree species on Earth?
4. What clonal aspen stand is often cited as the heaviest living organism by mass?
5. What is the oldest known non-clonal tree with a verified age?
6. Which plant produces the world’s largest seed?
7. What is the smallest known flowering plant?
8. Which spice is derived from an orchid and typically requires hand pollination outside its native range?
9. Which spice is harvested from the stigmas of Crocus sativus and is famed as the world’s most expensive spice?
10. What common plant compound evolved as a natural insecticide in coffee and tea plants?
11. From which tree is most natural rubber commercially obtained?
12. What type of parasitism is exhibited by mistletoes, which photosynthesize yet tap hosts for water and minerals?
13. Which photosynthetic pathway has evolved independently more than 60 times and boosts efficiency in heat and high light?
14. Which plants open stomata at night and fix CO₂ in acids to conserve water?
15. What ancient seed set the record for oldest to germinate into a living plant?
16. What is the world’s largest tree-borne fruit?
17. Which plants hold the record for fastest growth, up to ~91 cm (35 in) in a day?
18. What notorious “corpse flower” heats its spadix to help broadcast its odor to pollinators?
19. What rainforest figs typically begin life high in other trees and later envelop their hosts with descending roots?
20. Which cereal is the primary staple food for more than half of the world’s population?
what’s next?
So, that wraps up our Plant Trivia! We regularly update this article with fresh facts and questions about plants, trees, and flowers, so remember to bookmark this page so you don’t miss out on the latest updates.
Remember that you can use our print feature to come fully prepared and look like a pro at your next trivia night.
Did we miss some of your favorite plant trivia questions? If so, drop a comment below, and if it is a good one, we will add it to our article! Please keep it clean!
