https://plants.ces.ncsu.edu/plants/cephalocereus-senilis/common-name/old-man-of-mexico/
Old Man of Mexico - Cephalocereus senilis | North Carolina Extension Gardener Plant Toolbox
old man
https://species.wikimedia.org/wiki/Cephalocereus_fulviceps
Cephalocereus fulviceps - Wikispecies
cephalocereuswikispecies
https://oregoncactus.blogspot.com/2011/07/cephalocereus-senilis-crest.html
Oregon Cactus Blog: Cephalocereus senilis crest
Today we bring you a gathering of crested old men ( Cephalocereus senilis ). We've gathered a fairly good collection of these hairy critters...
oregoncactusblogcephalocereuscrest
https://plants.ces.ncsu.edu/plants/cephalocereus-senilis/common-name/bunny-cactus/
Bunny Cactus - Cephalocereus senilis | North Carolina Extension Gardener Plant Toolbox
north carolinaextension gardenerbunnycactuscephalocereus