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Lewis and Clark
SHOWING RECORD: 17 of 45   Prickly-Pear Cactus
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image: Prickly-Pear Cactus
Photograph by David Muench/Corbis
Prickly-Pear Cactus
(Plains Prickly-Pear, Hair-Spine Prickly-Pear)

Opuntia polyacantha



First Noted by Expedition
October 16, 1805, along the Snake River, Idaho.
 

Description
Low mound of spiny, flat, nearly oval joints has bright yellow or sometimes bright magenta flowers 2-3 in (5-7.5 cm) wide. Spines: 2-3 in (5-7.5 cm) long, 6-10 per cluster, mostly bent down. Height: 3-6 in (7.5-15 cm), with clumps of stems 1-10 ft (0.3-3 m) wide.
 

Habitat
Open areas on plains, in deserts, and among piñon and juniper.
 

Range
Southern British Columbia to eastern Oregon and northern Arizona; east to western Texas, Missouri, and central Canada.
 

Note
Species information from enature.com
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