Lanai Sawsedge
Gahnia lacera
- Native to:
- Hawaii, New Zealand, United States
iNaturalist: © jacqui-nz (iNaturalist #7528546)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Gahnia
- Species:
- Gahnia lacera
- USDA Symbol:
- GALA7
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 200 cm
- Drought Tolerance:
- Low
- Bloom Months:
- jan,feb,oct,nov,dec
- Bloom Colors:
- brown
Garden & Ecology Notes
- Wildlife Value:
- birds
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from rhizomes following fire; common in fire-prone wetland margins in New Zealand.
Soil Requirements
- Soil Type:
- moist, well-drained, organic-rich soil
- pH:
- 5.5 - 6.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers shaded or semi-shaded areas