long, narrow leaves with prominent midrib. Veins are parallel to one another, originating at the midrib and progressing towards the edge of the leaf. Margin is entire.
Stem:
Jointed branches are covered with a papery sheath.
Please contribute!This page is a profile for the plant species Polygonum pensylvanicum, used to collect records of where and when this plant was observed blooming, and for providing identification information for use in dichotomous keys. If you would like to help collect data for this or other plants, see Bloom clock project/How to Contribute for orientation.
