Parthenium hysterophorus
— Noun
– English
～ tropical American annual weed with small radiate heads of white flowers; adventive in southern United States
Parthenium argentatum
— Noun
– English
～ much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber
Parthenium integrifolium
— Noun
– English
～ stout perennial herb of the eastern United States with whitish flowers; leaves traditionally used by Catawba Indians to treat burns
parthenium
— Noun
– English
～ small genus of North American herbs and shrubs with terminal panicles of small ray flowers
parthenocarpy
— Noun
– English
～ (botany) the development of a fruit without fertilization or seeds
Parthenocissus
— Noun
– English
～ woody vines having disklike tips on the tendrils
parthenogenesis
— Noun
– English
～ human conception without fertilization by a man
parthenogenesis
— Noun
– English
～ process in which an unfertilized egg develops into a new individual; common among insects and some other arthropods
parthenogenetic
— Adjective
– English
～ (of reproduction) not involving the fusion of male and female gametes in reproduction