Fauna
Plant

Crab Cactus

Schlumbergera truncata

Also known as False Christmas Cactus, Thanksgiving Cactus, Holiday Cactus, Zygocactus

Crab cacti cling to tree branches and mossy rocks in the high-humidity canopy of Brazil's coastal rainforests. Their flattened stem segments feature distinctive, tooth-like projections along the margins that resemble crab claws. Striking asymmetric flowers bloom at the stem tips in bright shades of magenta, red, orange, and white, pollinated in the wild by hummingbirds.

EpiphyticFloweringSucculent
Crab Cactus reference1 / 7
(c) Pedro Alvaro Neves, some rights reserved (CC BY), uploaded by Pedro Alvaro Neves · cc-by
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VulnerableConservation statusIUCN Red List categoriesLCNTVUENCREWEXVulnerableRed List categories, explained →
Key facts
Diet & preyAutotrophic (Photosynthesis)
ThreatsHabitat loss from coastal development and illegal plant collecting
HabitatsSubtropical and tropical moist coastal forests
Life span20–50+ years
Classification
  1. OrderCaryophyllales
  2. FamilyCactaceae
  3. GenusSchlumbergera
  4. SpeciesSchlumbergera truncata
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to handle and non-toxic to pets and humans.
What to notice
Recognizable by pointed, claw-like teeth along the stem segment edges and asymmetric tubular flowers.
Support conservation
Observe wild plants without touching or harvesting, and purchase cultivated specimens from ethical growers.
Responsible observation
  • Light Requirements: Provide bright, indirect light to encourage healthy growth and vibrant seasonal blooming.
  • Watering Care: Allow the top layer of potting mix to dry out between waterings to prevent root decay.
  • Wild Conservation: Never collect wild specimens; buy only nursery-propagated cultivars.
Related species
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