Definition that contains adventive
- hemlock large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous
- stinking goosefoot European goosefoot with strong-scented foliage; adventive in eastern North America
- mus rose erect Old World perennial with faintly musk-scented foliage and white or pink flowers; adventive in United States
- chenopodium vulvaria European goosefoot with strong-scented foliage; adventive in eastern North America
- wall rocket yellow-flowered European plant that grows on old walls and in waste places; an adventive weed in North America
- angelica sylvestris European herb with compound leaves and white flowers; adventive on Cape Breton Island
- parthenium hysterophorus tropical American annual weed with small radiate heads of white flowers; adventive in southern United States
- japanese angelica tree deciduous clump-forming Asian shrub or small tree; adventive in the eastern United States
- dwarf spurge European erect or depressed annual weedy spurge adventive in northeastern United States
- california fern large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous