Texas Wildbuds
Persicaria bicornis
(Pink Smartweed)
Persicaria bicornis, Choke Canyon State Park, McMullen Co. 8515
Persicaria bicornis, Choke Canyon State Park, McMullen Co. 8592
Persicaria bicornis, Choke Canyon State Park, McMullen Co. 8272
Persicaria bicornis, Choke Canyon State Park, McMullen Co. 8591
Persicaria bicornis, Choke Canyon State Park, McMullen Co. 8282
| Scientific Name | Persicaria bicornis | USDA PLANTS Symbol | PEBI4 |
| Common Name | Pink Smartweed, Pink Knotweed | ITIS Taxonomic Serial No. | 518724 |
| Family | Polygonaceae (Buckwheat) | SEINet Reference |
Click Here |
| Description | Habitat: Moist soils in disturbed places, ditches, riverbanks, fields and shorelines. Plant: Erect annual 8 in. to nearly 6 ft. tall; stems are ascending to erect, rarely decumbent, much-branched, smooth and reddish, especially at nodes; brownish ocrea 0.25 to 0.8 inches long, usually with hairless edges and usually no bristles. Leaves: Alternate, oblong to nearly lanceolate with acute or obtuse tips, 2 to 5 inches long and 0.4 to 1-inch wide; smooth surfaces or the lower surface with small appressed hairs and punctate (dotted); short petioles 0.8 inches long or less. Inflorescence: Terminal or arising from axils, uninterrupted racemes 0.3 to 2.4 inches long with many small flowers; each flower about 1/4-inch across with 5 white to pink tepals, 6 to 8 stamens with whitish, pink or red anthers and 2 styles, stamens being either longer or shorter than styles (heterostyly) and either protruding or not and styles either protruding or not. Bloom Period: May to January. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, Guide to the Smartweeds (Persicaria) of North America by Daniel Atha (iNaturalist), SEINet, and Missouri Plants. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2025
Every attempt is made to provide accurate, up-to-date, and relevant information, but the completeness or accuracy of any information presented on this website cannot be guaranteed. I use authoritative references to insure high standards of accuracy and review and update the information frequently.