Persicaria pensylvanica [Polygonaceae]

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Scientific Name Persicaria pensylvanica (Polygonum pensylvanicum) USDA PLANTS Symbol POPE2
Common Name Pennsylvania Smartweed ITIS Taxonomic Serial No. 518745
Family Polygonaceae (Buckwheat) SEINet
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Description Habitat: Moist soils in disturbed places, ditches, riverbanks, fields and shorelines; up to 7000 ft.
Plant: Erect annual annual 1 to 5 ft. or more tall; stems are simple or branched, ribbed, smooth or slightly hairy above; brownish, papery, ocrea 0.2 to 0.8 inches long, usually with hairless edges and usually no bristles.
Leaves: Alternate, lanceolate 2 to 8 inches long; smooth surfaces or with small appressed hairs on lower surface; short petioles 0.8 inches long or less.
Inflorescence: Terminal or arising from axils, uninterrupted, racemes 0.2 to 2 inches long of many small flowers; each flower about 1/4-inch across with 5 white to pink tepals, 6 to 8 stamens with yellow, pink or red anthers and 2 styles; smooth greenish-white to pink calyx 1/8-inch long.
Bloom Period: May to November.
References: SEINet, "Wildflowers of Texas" by Michael Eason and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
BONAP Distribution Map

Texas Status:

© Tom Lebsack 2023