Calflora
Taxon  Report   11037    
Polygonum ramosissimum  Michx.  ssp. ramosissimum 
Yellow knotweed
Polygonum ramosissimum ssp. ramosissimum, a dicot, is an annual herb that is native to California.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period

Wetlands: Equally likely to occur in wetlands and non wetlands
Name Status:
Accepted by JEF

Alternate Names:
JEFPolygonum exsertum
JEFPolygonum interior
JEFPolygonum latum
JEFPolygonum leptocarpum
ICPNPolygonum ramosissimum var. ramosissimum
...
More information about  Polygonum ramosissimum ssp. ramosissimum
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

International Plants Names Index

Search efloras.org (Flora of North America)

Landscape information from Calscape

Photos on PlantID.net   /   Google Images

Consortium of California Herbaria 2


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/10/2021).