1) Genus maianthemum 2) Liliid monocot genus 
Maianthemum (Latin Māia `May` and Greek ánthemon `flower`; including former Smilacina) is a genus of rhizomatous, herbaceous, perennial flowering plants, native to the understory of woodlands. It is widespread across much of North America, Europe and Asia. In the APG III classification system, Maianthemum is placed in the family Asparagaceae...
[n] - sometimes placed in family Convallariaceae: false lily of the valley
genus Maianthemum noun sometimes placed in family Convallariaceae: false lily of the valley