Cactaceae
Cactus Family
2 genera
3 species
1 subspecies and varieties
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Opuntia columbianaColumbia prickly-pear
Distribution: Occurring east of the Cascades crest in Washington; south-central British Columbia to eastern Oregon, east to western and southern Idaho.
Habitat: From sagebrush plains and foothills to lower elevations in the mountains.
Origin: Native
Flowers: May-July
Opuntia fragilisbrittle prickly-pear, little prickly-pear
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east the Rocky Mountains, Great Plains, and Great Lakes region.
Habitat: Dry, open, often sandy soil.
Origin: Native
Flowers: May-July
Pediocactus nigrispinusdark-spine ball cactus, snowball cactus
Distribution: Occurring east of the Cascades crest in central Washington; central Washington to southeastern Oregon, east to western Idaho.
Habitat: Lowland to montane sagebrush desert, grasslands, and coniferous forests.
Origin: Native
Flowers: April-July
ssp. nigrispinus – dark-spine ball cactus