 Swamp Knotweed Polygonum amphibium |
 aka water knotweed, water smartweed, amphibious bistort, water heart's ease, tear-thumb |
 Found in canal overflow along Highway 97 by the Klamath Wildlife Reserve, by the boatramp inside the Reserve, on dry land by Columbia Wood on Highway 97 and off 97 nestled in arid soil between two canals. |
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 The soil is boggy, rich, loamy and springy. |
 It's just amazing how a normally submerged water plant can be thriving beautifully on seemingly dry land. |
 These plants get up to 3 feet tall and so far are blooming July into September. |
 Companion plants: Cattail, bulrush, water lilly. |
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 These were also in the backwater area across Highway 97 from the Cormorant snag on the Klamath Wingwatcher's Trail downtown. |
 The leaves were beautiful. A rich dark green with silvery, fine hair that glimmered in the sunlight. |
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 The smartweeds, being polygonums, are related to Japanese knotweed which makes a lovely paper. |
 I broke a stem close to the new leaves to reveal several layers of excellent fiber. It may be I'll need to use my Cherub as the stem was quite firm when I snapped it. |
 This and the next picture were taken September 18. |
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= Poisonous to animal and/or
human
= Noxious or Invasive in
Oregon
= Crop weed in Oregon
= Federal Noxious weed in
Oregon