the sterilization of an animal

genus of low herbs of tropical America and Australia; includes genus Telanthera

genus of low herbs of tropical America and Australia; includes genus Telanthera

genus of low herbs of tropical America and Australia; includes genus Telanthera

genus of low herbs of tropical America and Australia; includes genus Telanthera

prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses

prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses

prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses

prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses

prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses