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Photographer: Emmet J. Judziewicz
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Family Polygonaceae
Polygonum ramosissimum Michx. subsp. ramosissimum
bushy knotweed
Polygonum: derived from the Greek words polys, "many," and gonu, "knee or joint," hence "many joints" because of the thickened joints on the stem
ramosissimum: branching the most
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| Status: | Native |
| Plant: | erect or sprawling, annual, 12"-40" tall forb; stems with several branches |
| Flower: | greenish, 5-parted, 1/8" long, with a deep cleft, petals and petal-like sepals joined at the base with the outer 3 longer than the inner 2; inflorescence with 1-3 flowers in erect clusters from the upper nodes |
| Fruit: | blackish, smooth, shiny, dry, oval, 3-angled seed |
| Leaf: | alternate, narrow, flat, leaves on branches much smaller than those on the stem, jointed at the base |
| Habitat: | moist; shores |
| (Glossary) |
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