Sand Food (Pholisma sonorae)

Sand Food

Pholisma sonorae

It burrows in desert sands, a hidden succulent with pale blooms. Parasitic desert perennial; common name: Sand Food.

Full sun
0/week
Challenging
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Plant Needs

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Sunlight Requires full unobstructed direct sunlight; adapted to intense desert solar radiation
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Watering Extremely drought-tolerant; obtains nearly all moisture from host plant roots; no supplemental watering needed in natural habitat
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Temperature Tolerates extreme desert temperature fluctuations; withstands light frost down to 5°C and summer highs up to 45°C
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Characteristics

  • Leaf: Reduced to small, non-photosynthetic scale-like structures
  • Flower: Pale lavender to white tubular blooms, fragrant, clustered at sand surface
  • Stem: Thick, fleshy underground rhizome that attaches to host desert plant roots
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Care Guide

Watering

No supplemental watering required; relies entirely on host plant moisture

Fertilization

No fertilization needed; obtains nutrients from host plant. Fertilizer may harm host plant and disrupt parasitic relationship

N/A:No DIY fertilizers recommended; parasitic lifestyle eliminates need for external nutrient supplementation
Pruning
  • Remove spent flower heads after blooming to prevent unnecessary energy expenditure
  • Avoid disturbing underground rhizome to preserve attachment to host plant roots
  • Do not trim host plant roots to maintain the parasitic nutrient transfer
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: No documented toxicity to cats per ASPCA

Humans: No documented toxicity to humans per botanical and ASPCA records

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Garden Uses & Culture

Culture: N/A

Usage: Traditional edible plant for Indigenous peoples of the Sonoran Desert; floral ornamental in specialized desert gardens