|Scientific name:||Hymenachne amplexicaulis (Rudge) Nees|
Hymenachne, olive hymenachne
Declared Noxious weed. The Agriculture Victoria website has information about the noxious weed classification of this species.
Tropical and subtropical regions on dry land or floating in water up to one metre deep (Kowari Editorial Committee 1991). It is a weed of savannas, ponds with predominantly mucky soils, ditches, canal banks and sandy depressional areas (Hill 1996). Hymenachne invades wetlands, swamps and wet areas along rivers and streams (Standley & Steyermark 1958).