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Opuntia

Science > Biology > Flora and Fauna > Plantae > Magnoliophyta > Magnoliopsida > Cactaceae > Opuntia

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Cholla Cactus: Genus Opuntia - http://www.desertusa.com/mag99/may/papr/chollas.html
Cholla is a name for various shrubby cacti of this genus with cylindrical stems composed of segmented joints. Photographs and information on several species.

Genus Opuntia - http://www.desertmuseum.org/books/opuntia.html
Description of the genus and its species in the Sonoran Desert, Arizona. Includes illustrations.

http://groups.yahoo.com/group/Opuntia/ - http://groups.yahoo.com/group/Opuntia/
E-mail group for anyone interested in the propagation of cacti, especially the genus Opuntia.

http://www.botany.com/opuntia.html - http://www.botany.com/opuntia.html
Description and culture.

http://www.cactus-mall.com/pictures/opuntia.html - http://www.cactus-mall.com/pictures/opuntia.html
Images of O. weberi and O. bigelowii.

http://www.desert-tropicals.com/Plants/Cactaceae/Opuntia.html - http://www.desert-tropicals.com/Plants/Cactaceae/Opuntia.html
Images and brief information on many species.

Looking at a Cactus with the QX5 Microscope - http://www.microscopy-uk.org.uk/mag/artaug06/rb-qx5.html
Rudolf Baumueller turns his microscope on the cactus, Opuntia, and produces a photographic study of the plant.

Opuntia arenaria - Dune Pricklypear - http://nmrareplants.unm.edu/rarelist_single.php?SpeciesID=122
Image, description, and range of this rare plant in New Mexico.

Opuntia basilaris - http://www.desertusa.com/april96/du_beavtail.html
Description of the Beavertail Cactus and information on its habitat and range, with several photographs.

Opuntia cholla - http://www.biology.ed.ac.uk/research/groups/jdeacon/desertecology/choimag2.htm#top
Information and photographs of the Chain Link Cholla growing in the desert regions of Baja California.

Opuntia ficus-indica - http://www.dipbot.unict.it/orto/0116-1.html

Opuntia fragilis - http://florawww.eeb.uconn.edu/198502292.html
General information and classification.

Opuntia fragilis - http://www.em.ca/garden/native/nat_opuntia_fragilis.html
Photographs of the brittle prickly-pear cactus growing in its natural habitat.

Opuntia fulgida - http://www.desertusa.com/mag98/may/papr/du_chaincholla.html
All about the Chain Fruit Cholla, description, photograph, range, habitat and scientific and common names.

Opuntia humifusa - http://www.fs.fed.us/database/feis/plants/cactus/opuhum/all.html
Species summary from the USDA Forest Service.

Opuntia humifusa: Prickly Pear - http://www.ppws.vt.edu/scott/weed_id/opuhu.htm
Photographs of this low-growing cactus, with its description and identifying characteristics.

Opuntia leptocaulis - http://www.desertusa.com/mag98/dec/papr/xmascactus.html
Photograph and description of the Desert Christmas Cactus and information on its habitat and range.

Opuntia leptocaulis - Desert Christmas Cactus - http://www.naturesongs.com/vvplants/christmascactus.html
Images from Arizona.

Opuntia linguiformis - http://www.dipbot.unict.it/orto/1053-1.html

Opuntia microdasys - http://florawww.eeb.uconn.edu/198502330.html
General information and classification.

Opuntia phaeacantha - Desert Prickly Pear - http://www.naturesongs.com/vvplants/desertpricklypear.html
Images from Arizona.

Opuntia polyacantha - http://www.em.ca/garden/native/nat_opuntia_polyacantha.html
Photographs of this prickly-pear cactus growing in its natural habitat.

Opuntia polycantha - http://www.fs.fed.us/database/feis/plants/cactus/opupol/all.html
Species summary from the USDA Forest Service.

Opuntia schumannii - http://www.dipbot.unict.it/orto/0118-1.html

Opuntia stricta - http://www.dipbot.unict.it/orto/0119-1.html

Opuntia stricta - http://www.sms.si.edu/irlspec/Opuntia_stricta.htm
Taxonomy, description and photograph of this prickly pear growing in Florida.

Opuntia tomentosa - http://www.dipbot.unict.it/orto/0120-1.html

Opuntia viridiflora - Santa Fe Cholla - http://nmrareplants.unm.edu/rarelist_single.php?SpeciesID=61
Description, image, and range of this rare plant in New Mexico.

Prickly Pear Cactus - http://www.desertusa.com/magoct97/oct_pa/du_prkpear.html
Information on these cacti with photographs and descriptions of several species found in Arizona.

Prickly Pears and Chollas - http://www.biology.ed.ac.uk/research/groups/jdeacon/desertecology/opuntia.htm
Descriptions, ecology and images.

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