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Photographer: Robert W. Freckmann
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Family Caryophyllaceae
Scleranthus perennis L. subsp. perennis
perennial knawel
Scleranthus: from Greek scleros, "hard," and anthos, "flower," from the extremely hard hypanthium or calyx tube
perennis: perennial
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| Status: | Introduced - locally established |
| Plant: | spreading perennial, up to 6" tall forb; stems with many forks |
| Flower: | greenish, tiny, 5-parted, mostly stalkless, no petals, sepals rounded with conspicuous white borders; inflorescence a tight, branched clusters; blooms June-Sept. |
| Leaf: | opposite, growing together at the base, linear |
| Habitat: | disturbed areas |
| (Glossary) |
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