Home/Species/ Knotted Rush

Juncus nodosus

Knotted Rush

G5Secure Found in 1 roadless area NatureServe Explorer →

G5SecureGlobal Rank

Least concernIUCN

Identity

Unique IDELEMENT_GLOBAL.2.150111

Element CodePMJUN01210

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

IUCNLeast concern

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderJuncales

FamilyJuncaceae

GenusJuncus

Other Common Names

Jonc noueux (FR) knotted rush (EN)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank MethodExpertise without calculation

Review Date2016-05-13

Change Date1984-06-06

Range Extent>2,500,000 square km (greater than 1,000,000 square miles)

Rank Reasons

Widespread and common through much of North America, with thousands of occurrences.

Range Extent Comments

Widespread in the contiguous U.S. and adjacent Canada, spotty distribution at northern and southern extent of range.

Ecology & Habitat

Habitat

Marshes.

Other Nations (2)

United StatesNNR

Province	Rank	Native
Wisconsin	SNR	Yes
Colorado	S3	Yes
Iowa	S3	Yes
Vermont	S5	Yes
West Virginia	S1	Yes
New Hampshire	SNR	Yes
Utah	SNR	Yes
New York	S5	Yes
Pennsylvania	SNR	Yes
Maine	SNR	Yes
Rhode Island	SNR	Yes
Texas	SNR	Yes
South Dakota	SNR	Yes
California	S3	Yes
Washington	SNR	Yes
Massachusetts	S2	Yes
New Jersey	S3	Yes
Oregon	SNR	Yes
North Dakota	SNR	Yes
Montana	S4	Yes
Minnesota	SNR	Yes
Missouri	SH	Yes
Ohio	SNR	Yes
Indiana	SNR	Yes
Delaware	SH	Yes
Michigan	SNR	Yes
Virginia	S1	Yes
Nebraska	SNR	Yes
Illinois	S3	Yes
Connecticut	SNR	Yes
New Mexico	SNR	Yes
Alaska	S1	Yes
Idaho	SNR	Yes
Nevada	S2	Yes
Wyoming	S4	Yes

CanadaN5

Province	Rank	Native
New Brunswick	S4	Yes
British Columbia	S5	Yes
Nova Scotia	S4	Yes
Northwest Territories	S4	Yes
Prince Edward Island	S4	Yes
Yukon Territory	S3	Yes
Ontario	S5	Yes
Island of Newfoundland	S2	Yes
Manitoba	S5	Yes
Saskatchewan	S4	Yes
Alberta	S5	Yes
Quebec	S5	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (1)

Michigan (1)

Area	Forest	Acres
Fibre	Hiawatha National Forest	7,432

References (2)

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Knapp, W.M. 2014. Juncus fascinatus (Juncaceae), a new combination in Juncus sect. Ozophyllum and notes on morphologically similar species. Phytotaxa 174(5): 243–260.