PLANTS Profile for Polygonum shastense (Shasta knotweed)

Name Search
name search type enter a search name
	State Search
	Advanced Search
	Search Help


	Alternative Crops
	Characteristics
	Classification
	Cover Crops
	Culturally Significant
	Distribution Update
	Documentation
	Fact Sheets & Plant Guides
	Introduced, Invasive, and Noxious Plants
	Links
	Threatened & Endangered
	Wetland Indicator Status



	40,000+ Plant Images
	Submit Your Digital Images



	Complete PLANTS Checklist
	State PLANTS Checklist
	Advanced Search Download
	Symbols for Unknown Plants
	NRCS State GSAT Lists
	NRCS State Plants Lists



	Crop Nutrient Tool
	Ecological Site Information System
	PLANTS Identification Keys
	Plant Materials Web Site
	Plant Materials Publications
	USDA Plant Hardiness Map

PLANTS Profile

Polygonum shastense W.H. Brewer
Shasta knotweed

Symbol:

POSH

Group:

Dicot

Family:

Polygonaceae

Duration:

Perennial

Subshrub
Shrub

L48

Click on the image below to enlarge it and download a high-resolution JPEG file.

©Gary A. Monroe. United States, CA, Alpine Co. 1993. Usage Requirements. Any use of copyrighted images requires permission of the copyright holder.

More Information:

Images:
Polygonum shastense W.H. Brewer

Click on a thumbnail to view an image, or see all the Polygonum thumbnails at the PLANTS Gallery

Distribution:
Polygonum shastense W.H. Brewer


View Native Status

See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (CA, NV, OR)

Related Taxa:
Polygonum shastense W.H. Brewer

View 33 genera in Polygonaceae, 80 species in Polygonum

Classification:
Polygonum shastense W.H. Brewer

Click on a scientific name below to expand it in the PLANTS Classification Report.


Kingdom	Plantae – Plants
Subkingdom	Tracheobionta – Vascular plants
Superdivision	Spermatophyta – Seed plants
Division	Magnoliophyta – Flowering plants
Class	Magnoliopsida – Dicotyledons
Subclass	Caryophyllidae
Order	Polygonales
Family	Polygonaceae – Buckwheat family
Genus	Polygonum L. – knotweed
Species	Polygonum shastense W.H. Brewer – Shasta knotweed

More Accounts and Images:
Polygonum shastense W.H. Brewer

View photographs from CalPhotos.

View species account and distribution map from Flora of North America (FNA).

View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 20927.

View species account and distribution map from Jepson Interchange (University of California - Berkeley).

Time Generated: 05/25/2013 02:22 AM CDT