Home > Detail
Pennsylvania Smartweed (Polygonum pensylvanicum L.)
Image ID: 2010/kane4lTap/mouseover and drag to zoom/pan.
Other common names: Pink Knotweed
Family: Polygonaceae (Buckwheat)
Height: 1 to 4 ft.
Blooms: May to October
Leaf Type: smooth
Bloom Size: 0.12 in. (typical)
Flower Description: Elongate clusters, Regular blooms, 4 parts
Location: Kane Woods
Notes: May have 4 to 6 rays.
More photos of this flower
- Lady's Thumb
Lady's thumb has a distinctive triangular dark spot on its leaf.
- Swamp Smartweed
Swamp smartweed typically has a longer flower cluster and a larger leaf. Smartweeds are difficult to tell apart.
We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've grown!