Yahoo

Where the red fern grows: Why Eugene’s Delta Ponds turn red each year

Add Yahoo as a preferred source to see more of our stories on Google. Those driving along the Delta Highway north of the Valley River Center Mall may notice a unique quirk of the Delta Ponds this time ...
The Register-Guard

Seeing red? Here's why Delta Ponds are changing color in Eugene

Azolla is an aquatic fern that can turn red as the seasons change. It often appears in still freshwater and annually shows up in splotches at Delta Ponds in Eugene. Nothing indicates autumn as much as ...
insider.si.edu

A field guide to the ferns, and their related families of Northeastern and Central North America with a section on species also found in the British Isles and Western Europe ...

Morphology of a fern -- How to use the keys in this field guide -- Keys for quick visual identification -- Life cycle of a fern -- The place of ferns and their allies in the plant kingdom -- ...
The Register-Guard

Where the red fern grows: Why Eugene’s Delta Ponds turn red each year

Those driving along the Delta Highway north of the Valley River Center Mall may notice a unique quirk of the Delta Ponds this time of year: they are red. The red stuff adorning the 150-acre waterway ...