[Knotweeds: The Genera Aconogonon, Bistorta, Fallopia, Persicaria and Polygonum in Mt. Adams Country]

Prostrate Knotweed, Doorweed, Yard Buckwheat

Polygonum aviculare

Prostrate Knotweed, Doorweed: Polygonum aviculare

The photo above and below show close-ups of the leaves and flowers of prostrate knotweed as seen along road #82 at Snowking Snowpark on the southern slopes of Mt. Adams..........October 2005. Note that the outer and inner series of tepals in individual flowers are the same length.

Prostrate Knotweed, Doorweed: Polygonum aviculare

Paul Slichter