General: Perennial herb from a rhizome; stems ascending to erect, several, simple, rooting freely, 20-100 cm tall.
Leaves: Basal leaves lacking; stem leaves alternate, lanceolate or oblong-lanceolate, smooth to appressed hairy, the blades 5-12 cm long, slightly reduced upward, the stalks short; stipules 1-2 cm long, appressed hairy and fringed with hairs at the top.
Flowers: Inflorescence of 2 or sometimes 3, slender, spikelike racemes, 6-10 cm long; perianths greenish to white or pinkish, 2.5-3 mm long, 5-lobed slightly more than 1/2 the distance to the base; stamens 8.
Fruits: Achenes, 3-angled, brown or black, smooth and shiny, 2.5-3 mm long.
Ecological Framework for Persicaria hydropiperoides
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2013)
BC Ministry of Environment:BC Species and Ecosystems Explorer,
the authoritative source for conservation information in British Columbia.
Synonyms and Alternate Names
Persicaria hydropiperoides var. breviciliata (Fernald) C.F. Reed Persicaria hydropiperoides var. euronotora (Fernald) C.F. Reed Persicaria hydropiperoides var. opelousana (Riddell ex Small) J.S. Wilson Persicaria opelousana (Riddell ex Small) Small Persicaria paludicola Small Persicaria persicarioides (Kunth) Small Polygonum hydropiperoides Michx. Polygonum hydropiperoides var. adenocalyx (Stanford) Gleason Polygonum hydropiperoides var. asperifolium Stanford Polygonum hydropiperoides var. breviciliatum Fernald Polygonum hydropiperoides var. bushianum Stanford Polygonum hydropiperoides var. digitatum Fernald Polygonum hydropiperoides var. euronotorum Fernald Polygonum hydropiperoides var. hydropiperoides Polygonum hydropiperoides var. opelousanum (Riddell ex Small) Riddell ex W. Stone Polygonum hydropiperoides var. psilostachyum H. St. John Polygonum hydropiperoides var. strigosum (Small) Stanford Polygonum opelousanum Riddell ex Small Polygonum opelousanum var. adenocalyx Stanford Polygonum persicarioides Kunth