Jack Dykinga / Agave (Agave utahensis) close up of spines with Pinyon pine cone (Pinus edulis) wedged amongst them. Grand Canyon-Parashant National Monument, Arizona, USA

Jack Dykinga / Looking down into the leaves of an Agave plant {Agave utahensis} with Pinyon pine cone {Pinus edulis}, Grand Canyon-Parashant National Monument, Arizona, USA

Jack Dykinga / Close-up of two Agaves (Agave utahensis) in Grand Canyon National Park, Arizona

Jack Dykinga / Orange Lichen and Agave (Agave utahensis) on trailside rim rock, South Bass Trail, Grand Canyon NP, Arizona, USA