Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed
Polygonum minimum
Synonym: Polygonum torreyi
![Close-up of a flower subtended by a broad stem leaf of Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed: Polygonum minimum (Synonym: Polygonum torreyi)](../../../../cascade/mtadams/3/buck/polygonum/minimum/minimumc3.jpg)
Broadleaf knotweed as seen along Road #23 at the Mt.
Adams Viewpoint about one-half mile south of the intersection with Road 8810, Gifford Pinchot National Forest.........August
8, 2005.
![Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed: Polygonum minimum (Synonym: Polygonum torreyi)](minimum/minimum1a.jpg)
Broadleaf knotweed as seen along the Umatilla Rim Trail #3080 near Tollgate in the Umatilla N.F........June 24, 2007.
- ![Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed: Polygonum minimum (Synonym: Polygonum torreyi)](minimum/minimum4b.jpg)
Broadleaf knotweed growing on the cut bank along the North Loop Road about one mile downhill from the Kiger Gorge Overlook, Steens Mountain, Harney County, Oregon.........August 31, 2011.
-
- ![Flower and stem leaf of Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed: Polygonum minimum (Synonym: Polygonum torreyi)](../../../../cascade/mtadams/3/buck/polygonum/minimum/minimumc2.jpg)
![Broadleaf Knotweed, Broad-leaved Knotweed, Leafy Dwarf Knotweed, Zigzag Knotweed: Polygonum minimum (Synonym: Polygonum torreyi)](minimum/minimum08-13-2018.jpg)
Broadleaf knotweed seen along the Deadman Canyon Trail #1869 about 1.8 miles north of the trailhead at Fish Lake........August 13, 2018.
Paul Slichter