- Pronunciation: pers-ee-CARE-ee-ah stree-GO-sah
- Common Name: Prickly Smartweed
- Type: Herb Aquatic
- Family: POLYGONACEAE
- Size: Leaves to 11x 4 cm
- Flowers: white, Terminal, summer to autumn
- Vegetation Type: Wallum Woodland, Freshwater Wetland
- Species List: Wooroi Day Use Area Tracks, Wallace Park, BSDoonan, Cooloothin Corner, Cranks Creek, TAFE, Noosa Banks, Heritage Park, aquatic Plant,
