Weed profile: Hygrophila
Hygrophila
Hygrophila
Hygrophila costata
Hygrophila costata is native to the Americas from southern Mexico to Argentina and has naturalised in many tropical and subtropical areas around the world. It is listed as a noxious weed in North Carolina. This weed has had a number of names including Hygrophila brasiliensis, Hygrophila guianensis, Hygrophila conferta, Hygrophila rivularis and Ruellia brasiliensis.
In Australia Hygrophila costata has naturalised and become weedy in south-eastern Queensland and north-eastern New South Wales.
It is an aggressive semi-aquatic herb, especially in shallow water, forming mats of dense growth around the margins of freshwater lakes and watercourses where it can dominate and out-compete more desirable vegetation.
Status
- Declared in NSW under the Noxious Weeds Act 1993 (view details)
Related publications
| Title | |
|---|---|
| Hygrophila (Weed alert) |  213.5 kb |