Blackthread Lichen
Placynthium subradiatum
- Native to:
- United States
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Taxonomy
- Division:
- Ascomycota | - Sac fungi
- Family:
- Placynthiaceae
- Genus:
- Placynthium
- Species:
- Placynthium subradiatum
- USDA Symbol:
- PLSU3
Growth Characteristics
- Growth Habit:
- Lichenous
- Light Requirements:
- Full Sun
Soil Requirements
- Soil Type:
- rocky, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- commonly found on limestone or calcareous substrates