Botanical atlas

Hydrilla

Hydrilla verticillata

Hydrilla verticillata has never been a fixture of the herbalist's cabinet the way land plants like mint or chamomile are. In parts of its native range across Asia, Africa, and Australia, it has quietly served as fodder for grazing waterfowl and fish and as a green manure worked into flooded rice paddies, a common thread of village pond life long before it had a Latin name. Its more famous story in North America began in the 1950s, when aquarium hobbyists in Florida released cuttings into local waterways, and the plant went on to become one of the continent's most notorious aquatic invaders. Today it is better known to biologists and lake managers than to herbalists, valued less as medicine and more as a case study in how fast a single plant can reshape a waterway.

In tradition.

Hydrilla verticillata has never been a fixture of the herbalist's cabinet the way land plants like mint or chamomile are. In parts of its native range across Asia, Africa, and Australia, it has quietly served as fodder for grazing waterfowl and fish and as a green manure worked into flooded rice paddies, a common thread of village pond life long before it had a Latin name. Its more famous story in North America began in the 1950s, when aquarium hobbyists in Florida released cuttings into local waterways, and the plant went on to become one of the continent's most notorious aquatic invaders. Today it is better known to biologists and lake managers than to herbalists, valued less as medicine and more as a case study in how fast a single plant can reshape a waterway.

Safety.

Not a food or medicinal plant. In the U.S. it's a federal noxious weed that's illegal to possess, transport, or plant in many states, so report sightings rather than collecting it.