
Euphorbia obesa is a rare, round succulent from South Africa. It looks like a baseball, so it is easy to spot. The plant grows in dry, rocky places. It can handle hot summers and little rain. Here are some important facts about this special euphorbia:
Feature | Description |
---|---|
Shape | Spherical, thick body (‘obesa’ means fat or swollen) |
Habitat | Rocky, arid hills in the Great Karoo |
Local Names | Living baseball, Vetmensie, Klipnoors |
Key Takeaways
- Euphorbia obesa is a rare, round succulent from South Africa. It keeps water in its thick stem to live in dry, rocky places. The plant grows slowly and does not need much water. It does best in hot, well-drained soil. This makes it great for small pots or gardens. Protecting Euphorbia obesa is important because it is rare in nature. Growing it in gardens and watching trade help keep it safe.
Euphorbia obesa Overview

Appearance
Euphorbia obesa is a ball-shaped succulent with a special look. When it is young, it is almost a perfect sphere. As it gets older, it turns more like a cylinder. The plant has one thick stem with eight clear ridges. These ridges make grooves that give the plant a bumpy feel. The stem is gray-green with dull purple stripes across it. It does not have many leaves, and the few it has fall off fast. The stem is the main part you see. In summer, small cup-shaped flowers called cyathia grow at the top of each ridge. The fruit is a three-sided capsule that pops open to spread tiny round seeds. The word “obesa” means fat or swollen, which matches its chubby shape. People call it the baseball plant because it looks like a baseball. This small plant can hide among rocks in the wild, so it is hard to find.
Note: The round, thick body of Euphorbia obesa helps it keep water inside and lose less water, which helps it live in dry places.
Growth Habits
Euphorbia obesa grows slowly and can live for many years. It takes about three to four months to become an adult when grown by people, but it can live for two or three years or even longer. The thick stem holds water, so the plant can go a long time without rain. Its roots like rocky soil that drains well, and it does not need much water once it is settled. Euphorbia obesa likes hot, dry weather and can take a little frost if its roots stay dry. The plant stays small and grows slowly, so it is good for pots or small gardens. It does not branch out or spread like some other succulents. The thick stem and tiny leaves help it live in tough, dry places.
- The round shape of Euphorbia obesa helps it lose less water.
- The plant keeps water in its stem to survive dry times.
- It grows best in rocky, well-drained soil and needs little water.
- Its small, thick shape helps it stay strong in hard places.
Euphorbia Genus
Euphorbia obesa is part of the big Euphorbia group, which has many kinds of succulents. Plants in this group have thick, juicy stems that hold water and make a white, poisonous sap called latex. This sap can hurt your skin and is dangerous to eat. Euphorbia obesa does not have spines or real leaves, which makes it different from some other succulents. It makes special flowers called cyathia. These are tiny, cup-shaped groups that have either male or female flowers, and each plant has only one kind, so they need another plant to make seeds. The Euphorbia group has many shapes and sizes, but all have the same kind of flower and sap. Euphorbia obesa fits in this group as a round, ribbed, and tough succulent.
Common Name | Description |
---|---|
Baseball plant | Named for its ball-shaped stem, like a baseball |
Living baseball | Another name showing its round look |
Dwarf succulent plant | Means it is small and stores water |
Habitat and Origin

Native Region
Euphorbia obesa grows in only one small area in South Africa. Its home is the Great Karoo, which is a big, dry place with many rocks and open land. The plant lives from the middle of the Northern Cape near Springbok, down to Clanwilliam and the Cederberg, and east to Graaff Reinet, Uniondale, Willowmore, and even Grahamstown. Most Euphorbia obesa plants grow on rocky hills that face north or east. These hills have soil made of quartz or shale. Euphorbia obesa does not move far from these spots. Because it only grows in these places, it is rare in nature.
Environment
The Karoo is a hard place for plants to live. It is dry and does not get much rain. The sun is strong, and days can be very hot. Temperatures are usually between 65°F and 85°F, but nights are much cooler. The ground is rocky or sandy and lets water drain away fast. This keeps the roots from rotting, which can kill plants. Euphorbia obesa saves water in its thick, round body to live through dry times. Its shallow roots take up water quickly when it rains. The plant has a milky sap that is poisonous, so animals do not eat it. Euphorbia obesa also gives food and shelter to bugs and small animals, helping other life in the Karoo.
Note: The plant’s round shape and sap help it live in the tough Karoo.
Conservation
It is very important to protect Euphorbia obesa. People took many wild plants for their gardens. This almost made the plant disappear in the wild. Even in protected places, people took plants away. Now, Euphorbia obesa is on CITES Appendix II, so trade is watched to keep it safe. Groups and gardens grow the plant from seeds and cuttings. This helps stop people from taking wild plants. Botanical gardens, like the National Botanical Garden in Nepal, keep Euphorbia obesa safe and help it live outside its home. Conservation programs teach people why the plant matters and why we must protect it. Growing Euphorbia obesa in nurseries helps save wild plants. Protecting this special succulent is still very important so it does not go extinct.
- Ways to protect Euphorbia obesa include:
- Watching trade under CITES Appendix II
- Growing plants in gardens and nurseries
- Teaching people why the plant is important
- Keeping wild places safe from illegal picking
Euphorbia obesa is easy to notice because it is round and has special patterns. It is not common in nature, which makes it rare. Many people who collect plants like it for how it looks and because it grows slowly. Too many people taking it from the wild can hurt its numbers. Growing it in gardens helps keep it safe.
This rare succulent is still a favorite for people who love plants.
FAQ
What makes Euphorbia obesa different from a cactus?
Euphorbia obesa is not a cactus. It is part of the Euphorbia family. This plant has no spines at all. It makes a white, milky sap. Cacti have sharp spines and do not make this sap.
Can people grow Euphorbia obesa indoors?
Yes, you can grow Euphorbia obesa inside your house. The plant needs lots of sunlight. It likes soil that lets water drain out fast. You do not need to water it much. It is good for small pots and sunny spots.
Is Euphorbia obesa poisonous?
Yes, Euphorbia obesa makes a white sap that is poisonous. The sap can bother your skin or eyes. You should wash your hands after you touch the plant.