Barrel Cactus - Genus: Ferocactus - DesertUSA

National Parks Archives - Cactus Jungle

Types of Cacti in the United States

Find Trees & Learn University of Arizona Campus Arboretum

Ferocactus, plant genus

Barrel Cactus spp - Pollinator Web

Plant Spotlight

California Barrel Cactus (Ferocactus cylindraceus) · iNaturalist

SDNHM - Ferocactus diguetii (Barrel Cactus)

Ferocactus - Wikipedia

Ferocactus is Barrel Cacti from the Americas – Crazy Plants Crazy Critters

Types of Cacti in the United States

Types of Cacti in the United States

Ferocactus cylindraceus - Wikipedia

Ferocactus cylindraceus (Compass barrel)

Barrel Cactus - Genus: Ferocactus - DesertUSA