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Graham's nipple cactus

November 9, 2015 • Boulder Canyon Trail • Superstition Wilderness, Arizona

Coordinates: 33.52807,-111.41961 (click for map)
Graham's nipple cactus (Mammillaria grahamii) [Boulder Canyon Trail, Superstition Wilderness, Arizona]
Filename: 20151109-094454.jpg 2660x3546 pixels, ISO 80, f4.0 @ 1/200 sec
Mammillaria grahamii

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