Swamp Onion
Allium madidum
- ![Swamp Onion: Allium madidum](madidum/madidum1b.jpg)
Close-up images of the inflorescence and whole plant of swamp onion as seen at the wildlife viewing area at Logan Valley, Malheur National Forest........July 26, 2011.
- ![Habitat of Swamp Onion: Allium madidum](madidum/madidum07-18-2019b.jpg)
Swamp onion as seen as spotted in vernally moist swales where the snow lays late into mid-summer along the Sugarloaf Trail, Sugarloaf Mountain, Wallowa-Whitman National Forest.......July 18, 2019.
![Habitat of Swamp Onion: Allium madidum](madidum/madidum06-17-2019a.jpg)
- ![Swamp Onion: Allium madidum](madidum/madidum06-17-2019c.jpg)
Swamp onion in bloom on vernally moist swales at Boeing Field, Ochoco National Forest......June 17, 2019.
![Inflorescence of Swamp Onion: Allium madidum](madidum/madidum07-17-2019.jpg)
A close-up of the inflorescence of swamp onion as seen at a vernally moist bald along the Lick Creek Trail #1809, Hells Canyon National Recreation Area.......July 17, 2019.
- ![Swamp Onion: Allium madidum](madidum/madidum06-13-2015b.jpg)
Swamp onion as seen on vernally moist soils on a slope uphill to the north of Pisgah Meadows, Ochoco National Forest.........June 13, 2015. This site is on the southern edge of the Bridge Creek Wilderness.
Paul Slichter