Pediocactus nigrispinus

This Mountain Ball Cactus is probably Pediocactus nigrispinus, though the USDA only catalogs the related species Pediocactus simpsonii. Two diagrams of its range shows only a couple of pockets of Oregon and Washington State shrub-steppe terrain.

This one was seen in the Whiskey Dick management area of the WA Dept of Fish and Wildlife. I missed the blooming season by a couple of weeks.


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