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Prickly Pear Cactus


Prickly Pear Cactus
相片資料
著作權:Julie Wyatt (j_wyatt) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 142 W: 40 N: 211] (1235)
類別:Plants
媒體:彩色
拍攝日期:2003-12-24
分類:Cacti
相機:Canon Powershot G2
Exposure:f/4, 1/403 seconds
Photo Version:Original Version
Theme(s):Cacti and deserts [view contributor(s)]
提交日期:2005-01-24 23:30
觀看:5173
數數:0
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We found this nice Prickly Pear Cactus in the Gila Cliff Dwellings National Monument near Silver City NM. The elevation is about 8000 ft. and it was the end of December, but the Prickly Pear didn't seem to mind.

Like other cactus, most prickly pears and chollas have large spines -- actually modified leaves -- growing from tubercles -- small, wart-like projections -- on their stems. But members of the Opuntia genus are unique because of their clusters of fine, tiny, barbed spines called glochids. Found just above the cluster of regular spines, glochids are yellow or red in color and detach easily from the pads. Glochids are often difficult to see and more difficult to remove, once lodged in the skin.

Prickly pear cactus are found in all of the deserts of the American Southwest, with different species having adapted to different locale and elevation ranges. Most require course, well-drained soil in dry, rocky flats or slopes. But some prefer mountain pinyon/juniper forests, while others require steep, rocky slopes in mountain foothills.

LCannon has marked this note useful
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