Water-primrose (Ludwigia species) is a group of very similar non-native plants, L. grandifolia, L. peploides and L. hexapetala, that are invasive in wetland ecosystems.

The other threat is water-primrose.It’s an aquatic plant native to the southeastern United States and was first used in ornamental landscapes. Now, they have spread to wetlands, establishing ...

Crews will begin combating an invasive water plant at Minto-Brown Island Park's Oxbow Slough starting Monday. Visitors to Minto-Brown are advised to stay out of the slough during treatment times ...

Crews will begin combating an invasive water plant at Minto-Brown Island Park's Oxbow Slough starting Monday. Visitors to Minto-Brown are advised to stay out of the slough during treatment times ...

Floating water primrose was found in the habitat of Sylvan Water, the largest of four natural ponds at Green-Wood. Photo courtesy of Green Wood Cemetery Green-Wood Cemetery has received a $20,000 ...

City officials said Uruguayan water primrose, also called Ludwigia, had gained a stranglehold on the Willamette Slough at Minto-Brown Island Park in prior years, hurting recreational opportunities ...

Salem – The Oregon State Weed Board (OSWB) awarded $54,486 to the North Santiam Watershed Council for an aquatic invasive treatment and survey project at their February 20-21, 2020 board […] ...

Q: Today I spoke with two lovely ladies at the Oro Valley Farmers market. I asked about this flower that grows wild in my yard. When I first saw it I thought it was a form of dandelion, but it has ...

Mexican evening primrose (Oenothera berlandieri) is a beautiful, fragrant low growing plant that attracts pollinators.It is not invasive in our climate if you control its water supply. Dominika ...