Scrabrous Black Sedge
Carex atratiformis
Also known as: Raymond's Sedge
- Native to:
- Canada, Labrador, United States
agbelliveau (www.inaturalist.org)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Carex
- Species:
- Carex atratiformis
- USDA Symbol:
- CAAT6
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
⚠️Magdalena alpine (Erebia magdalena)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
Soil Requirements
- Soil Type:
- moist, fertile, well-drained loam
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Common in wet meadows and forested wetlands
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–60 days
- Notes:
- Seeds require cold stratification for 60-90 days; germination occurs in spring.