Different kinds of plants make different kinds of seeds. Some seeds grow into trees and other seeds grow into other kinds of plants.
Trees evolved many times around the world.
That pre-sleep herbal tea may be doing many people a lot of good.
A shepherd with his flock in the Netherlands.
Humans have long been trying differentiate themselves from the rest of the biological world. Is it because we're superior, or just insecure?
Reconstruction of a Permian swamp.
Plants, in their fossil forms, can reveal a great deal about past environments and climates.
Herbs, roots and plants can have health benefits. But they can also interact negatively with Western medicines.
Numerous traditional African medicines are undeniably beneficial in treating disease or maintaining good health.
The leaves of most plants are green because the leaves are full of green chemicals.
Marcella Cheng/The Conversation
This is an article from Curious Kids, a series for children. The Conversation is asking kids to send in questions they’d like an expert to answer. All questions are welcome – serious, weird or wacky! Why…
Utah prairie dog, Bryce Canyon National Park.
Congress is moving to cut back the Endangered Species Act and give more power to states. But a recent study shows that state laws are weaker and states have few resources to protect species at risk.
Most modern offices contain a surprising amount of harsh chemicals. If you're heading back to work, check out our list of the best plants to clean the air (and reduce stress).
Diatoms - like those seen under a microscope here - can teach us a lot about harvesting light.
Diatoms' tricks may offer new insights that keep solar cell energy running efficiently and robustly throughout their processes.
Though not this obvious from the outside, plants are keeping time.
Precisely calibrated timekeepers are found in organisms from all domains of life. Biologists are studying how they influence plant/pathogen interactions – what they learn could lead to human medicines.
Ferns are a very old group of plants that came along more than 200 million years before the dinosaurs walked the earth.
Marcella Cheng/The Conversation
Ferns came along more than 200 million years before the dinosaurs walked the Earth. They were food for plant-eating dinosaurs and they're really great survivors. Heather, age 8, wants to know more.
Citizen scientists collecting soil and fine-roots from under unhealthy plants.
Cape Citizen Science
Humans - the very "carriers" who can spread dangerous microbes unthinkingly from their equipment and shoes - can instead become the first line of defence against a possible microscopic invasion.
The well-being of pollinators like bees have a direct impact on our lives.
Vida van der Walt
Pollination in South Africa's ecosystems is extremely complex. However new advances such as pollen metabarcoding help us understand interactions between pollinators and pollen.
Calamophyton Forest colour copy.
Cladoxylopsid trees were hugely complex and very different to those we have now.
New research shows bees see a blue halo around flowers thanks to nanostructures on its petals.
Spend many months attached to the ISS and see how well you grow.
If you want to live on Mars, you're going to need to grow food. Seeds are naturally equipped to handle challenging Earth environments, but how well can they survive what they'll encounter off-planet?
Plants make proteins based on whatever genetic material you give them.
Carl Davies, CSIRO
Inserting a random DNA mishmash into a plant or bacterium directs it to make a novel protein. Sifting through the resulting molecules, researchers may find ones have medical or agricultural uses.
It was all the apple’s fault: we’ve been fascinated by poisoned fruit for a long time.
Jacob Jordaens (1593–1678), The Fall of Man, via Wikimedia Commons
Plants produce toxic fruit for everything from deterring fungi to causing constipation.
Leaf sizes vary according to a complex mix of temperature and water.
Some leaves are millimetres across, and others are a metre square. An international study has found the essential factors controlling leaf variations.
Ivar Leidus (Iifar) / Wikimedia Commons
Bees need pollen to survive and grow, but not all plants can provide the right mix.