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Photographer: Emmet J. Judziewicz
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Family Polygonaceae
Polygonum tenue Michx.
pleat-leaf knotweed, slender 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
tenue: slender
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| Status: | Native |
| Plant: | erect or sprawling, annual, 4"-16" tall, slender forb |
| Flower: | white, petals and petal-like sepals joined at base and deeply cut; inflorescence usually 1 flower from each node; blooms July-Sept. |
| Fruit: | black, dry, sharply 3-angled seed |
| Leaf: | alternate, jointed at the base, linear with an awl-shaped tip, pleated with 2 folds near the middle |
| Habitat: | dry; in acidic, sandy, or rocky soil |
| (Glossary) |
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