| Abbreviation | Definition |
|---|---|
| LCL | Land and Carbon Lab |
| LDD | Lymantria Dispar Dispar |
| LDP | Long-Day Plant |
| LDPH | Light Dependent Peroxidizing Herbicide |
| LEA | Leaf |
| LFNC | Launceston Field Naturalists Club |
| LIVE | Low Input Viticulture and Enology |
| LMFC | Logarithmic Mean Fluorescent Channel |
| LMO | Living Modified Organism |
| LNT | Little Natural Tree |
| LOV | Light-Oxygen-Voltage Sensing Domain (protein sensors) |
| LP | Landscap Park |
| LSD | Landscape Subsoil Drainage |
| LSEB | Laboratory of Systematic and Evolutionary Botany |
| LTC | Long Term Cover |
| LUFU | Lupinus fulcratus |
| LWR | Leaf Weight Ratio |
| LYAM | US Department of Agriculture symbol for the plant Lycopus americanus, aka American water horehound. |
| MABG | Mercer Arboretum and Botanic Gardens |
| MAD | Maple, Ash, and Dogwood |