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barrel cactus
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barrel cactus Golden barrel cactus (Echinocactus grusonii). barrel cactus fishhook cactus Barrel cactus (Echinocactus grusonii)
Quizzes
Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap
Plants: From Cute to Carnivorous
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Britannica’s Flower Bingo
Saguaro cacti dot the Sonoran Desert landscape at Saguaro National Park, Arizona. Formerly Saguaro National Monument cactus
Can You Drink Water from a Cactus?
Plant seedlings emerging from rich fertile soil
Do Plants Feel Pain?
Frost. Frost point. Hoarfrost. Winter. Ice. Blackberry plant. Thorn. Hoarfrost on blackberry thorns.
Botanical Barbarity: 9 Plant Defense Mechanisms
Leaves are silhouetted against an orange and yellow sky with twilight. (plants, petioles, nature)
Do Plants Emit Oxygen and Carbon Dioxide at Night?
Discover
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics
10 Best Hockey Players of All Time
Space race (1957-1969) infographic between United States (U.S.) and Russia. America, Soviet Union, U.S.S.R., space exploration
Timeline of the Space Race, 1957–69
Submerged sperm whale off east Sri Lanka coast, mammal
How Did the Sperm Whale Get Its Name?
Chinese pictograph, calligraphy tablet of Huang Tingjian, a famous calligrapher in Ancient Song Dynasty. The background of Chinese cultural elements.
The World’s 5 Most Commonly Used Writing Systems
NBA Lakers Celtics Finals Kevin Garnett shooting.
10 Great Sports Rivalries
Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.
Why Is the Mona Lisa So Famous?

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Photos

barrel cactus
Golden barrel cactus (Echinocactus grusonii).
barrel cactus
fishhook cactus
Barrel cactus (Echinocactus grusonii)
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Related Topics and References

Topics

Related Quizzes and Features

Quiz
Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap
Plants: From Cute to Carnivorous
Demystified
Saguaro cacti dot the Sonoran Desert landscape at Saguaro National Park, Arizona. Formerly Saguaro National Monument cactus
Can You Drink Water from a Cactus?
Plant seedlings emerging from rich fertile soil
Do Plants Feel Pain?