Herbaceous biennials. First-year plants do not bloom. Second-year plants grow 3-5’ high and are bush-like. Erect stems are multi-branched and often hollow.
Other names for this plant include:
- Common names: white sweetclover, yellow trefoil, yellow melilot, common melilot
- Scientific names: Melilotus alba; M. arvensis; M. leucanthus; M. lutea; M. officinalis var. micranthus
- Invades prairies, savannas, dunes, roadsides, and abandoned fields.
- Fire stimulates germination of sweet clover seeds and can exacerbate invasions.