Photo shows Austrocylindropuntia subulata f. cristata. Normal form grows 10 ft; cristate stays smaller with weaker stems.
Separate if one rots. Cristate forms are fragile but collectible.
Stabilizing a Leaning Heirloom Columnar Cactus
Emergency Care for Cold/Wet Damaged Pachypodium
Transplanting a 30-Year Blooming Zygocactus (Christmas Cactus)
Rotting Barrel Cactus: Low Survival Odds
Vermont Cactus Frostbite: Patience and Observation
Chihuahuan Desert Seed Heads: Narrowing Down the Possibilities
Cactus Plants: Low-Maintenance Succulents for Dry Indoor Air
Grafted Cactus Host Cutting: Greg Refers to Grafting Expert Site
Neoraimondia herzogiana: Natural Woody Trunk Formation Is Healthy
Tall Cactus Basal Rot: Thin Species = Cut and Root, Fat Species = Lost
Euphorbia Cold Damage: Fast Rot Spread, Basal Damage = Likely Loss
Top-Down Cactus Rot: Frost vs. Root Death, Euphorbia Exception
Rooting a Large Cactus Cutting: The "Cowboy Cactus" Method
Easter Cactus (Hatiora gaertneri) Care: Cool Rest Period for Spring Blooms
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