Hydrilla Verticillata
Hydrilla verticillata
Conditionally Safe
evidence: limited
Scientific Summary
Hydrilla verticillata, commonly called hydrilla, is an aquatic plant with long, ribbon‑shaped leaves that grows in stagnant or slow‑moving freshwater. Traditional uses are limited and largely unverified; it has occasionally been applied topically to soothe insect bites or minor skin irritations, but no scientific evidence supports significant therapeutic effects. Consumers should exercise caution, as the plant can cause skin irritation or allergic reactions in some people, and it is not approved for internal use.
Source: WHO Monographs on Selected Medicinal Plants (Vols 1-3), Trease & Evans Pharmacognosy 16th ed
