Calflora
Taxon  Report   6767    
Polygonum polygaloides  Meisn.  ssp. esotericum  (L. C. Wheeler) J. C. Hickman
Modoc county knotweed,  Whitemargin knotweed
Polygonum polygaloides ssp. esotericum, a dicot, is an annual herb that is native to California, is found only slightly beyond California borders.
also called Polygonum esotericum
California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).   CNPS Inventory
Observation Hotline
(observation details)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Habitat: vernal-pools

Communities: Sagebrush Scrub, Northern Juniper Woodland, Freshwater Wetlands, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTS: Polygonum esotericum
More information about  Polygonum polygaloides ssp. esotericum
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (POPOE)


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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Aug 17, 2019).