By A Mystery Man Writer
Mammillaria tetrancistra, Common Fishhook Cactus
Tobusch Fishhook Cactus – A Naturalist's Journey
Peninsular fishhook cactus (Mammillaria dioica) · iNaturalist
Vegetation Around Las Vegas, Common Fishhook Cactus (Mammillaria tetrancistra)
Nice crown of flowers on this Fishhook Pincushion Cactus (AKA Graham's Nipple or more officially Mammillaria Grahamii) : r/cactus
Fish-hook Cactus - Colorado National Monument (U.S. National Park Service)
Mammillaria tetrancistra - Fishhook cactus (fruit)
Mammillaria dioica Calflora
Cochemiea dioica - Wikipedia
Mammillaria tetrancistra common fishhook cactus with last year's fruits.
Peninsular fishhook cactus (Mammillaria dioica) · iNaturalist