Hydrilla USGS

Description:

Summary[edit] Hydrilla verticillata - USGS photo [1] Licensing[edit] Public domainPublic domainfalsefalse. : This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy. български | català | čeština | Deutsch | English | español | eesti | فارسی | suomi | français | galego | Bahasa Indonesia | italiano | 日本語 | 한국어 | македонски | മലയാളം | Nederlands | polski | português | русский | sicilianu | Türkçe | 中文 | 中文（简体）‎ | +/− :.