©
Robert Siegel
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Cactus
Species on page
Hedgehog cactus (Echinopsis)
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California barrel cactus (Ferocactus cylindraceus)
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Beavertail cactus (Opuntia basilaris)
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Golden barrel cactus (Echinocactus grusonii)
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Mexican giant cactus (Pachycereus pringlei )
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Lava cactus (Brachycereus nesioticus)
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Silver torch or wooly torch (Cleistocactus strausii) - separate page
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Cholla (Cylindropuntia)
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Tree cholla (Cylindropuntia imbricata)
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Prickly pear (Opuntia)
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Nightblooming Cereus (Peniocereus greggii)
Hedgehog cactus (Echinopsis)
Cactus flower
California barrel cactus (Ferocactus cylindraceus)
A barrel of fun
A barrel of fun
Beavertail cactus (Opuntia basilaris)
Beaver tail
Silver torch or wooly torch (Cleistocactus strausii)
Cactus flower
Cholla (Cylindropuntia)
Tree cholla (Cylindropuntia imbricata)
Cholla
Golden barrel cactus (Echinocactus grusonii)
Barrel of fun
Flowered barrel
"Mother-in-law's cushion"
Prickly pear (Opuntia)
Prickly
Pear
Prickly pear (Opuntia)
Family: Cactaceae
Arizona Cactus Garden, Stanford
With Nature Through Photography class
August 21, 2016
Canon Rebel T5i
Prickly pear (Opuntia)
Family: Cactaceae
Arizona Cactus Garden, Stanford
With Nature Through Photography class
August 21, 2016
Canon Rebel T5i
Nightblooming Cereus (Peniocereus greggii)
Night blooming cactus
Closer
Its bark is as bad as its bite
Two tone
Las Grietas, Santa Cruz
Galápagos 2010
July, 2010
Mexican giant cactus (Pachycereus pringlei)
Here today
Cardón tomorrow
Great blue heron on cardone
Lava cactus (Brachycereus nesioticus)
Lava cactus
Lava cactus (Brachycereus nesioticus)
Galápagos 2010
July, 2010
Barrels
Prickly pear
A sharper look
Going about their beesness
Radiant
Cactus bud
Cactus flowers
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Last modified: June 7, 2023
Created: August 11, 2010
Contact: siegelr@stanford.edu
All pictures are protected by copyright. Do not use without permission.