2017 Ron Vanderhoff 2021 Ken Hickman 2021 John Rawlings 2020 Susan McDougall 2020 Susan McDougall 2020 Susan McDougall 2021 Ken Hickman 2017 Ron Vanderhoff 2021 Ken Hickman 2021 Cynthia Powell 2021 Ken Hickman 2021 Ken Hickman 2021 John Rawlings 2020 Ron Vanderhoff 2020 Ron Vanderhoff 2008 Keir Morse
Persicaria hydropiperoides is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
[Wikipedia] Range, Habitat, Description: Persicaria hydropiperoides is a New World species of flowering plant in the buckwheat family known by the common names swamp smartweed and false waterpepper. It is widespread across much of North America and South America. It grows in moist and wet habitats, and is sometimes semi-aquatic.
Persicaria hydropiperoides is quite variable and is sometimes divided into several varieties, some of which may be better treated as species in their own right.
In general, Persicaria hydropiperoides is a rhizomatous perennial herb growing upright or erect and approaching a maximum height of one meter (40 inches). Roots may emerge from nodes on the lower stem. The bristly lance-shaped leaves are around 10 centimeters (4 inches) long. The leaves have sheathing stipules known as ochrea. The spikelike inflorescence produces many pinkish flowers each about 3 millimeters wide. (contributed by Mary Ann Machi)
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Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available: